Ethan finds some dimes and quarters in his change purse. How much money (in dollars) does he have if he has 12 dimes and 4 quarters? How much money (in dollars) does he have if he has xx dimes and yy quarters?

Answers

Answer 1

So a dime is .10 or 10 cents

a quarter is .25 or 25 cents

12(.10)=$1.2

4(.25)=1

the equations would be

.25(x)

.10(x)

and if you need them combined it would be

.25(x) + .10(x)

:)


Related Questions

find the volume of a composite figure.

6ft, by 4ft, by 4ft, by 6ft, by 12ft equals

Answers

The Volume of the given composite shape is: 432 ft³

What is the Volume of the composite figure?

The formula for the volume of a triangular prism is:

Volume = base area * height

The volume of a cuboid is:

Volume = Length * Width * Height

Thus:

Volume of composite shape = (6 * 12 * 4) + (6 * 6 * 4)

= 432 ft³

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60% of what number is 150?

Answers

Answer:

90

Step-by-step explanation:

To solve this you must make a proportion of x/150 60/100. Then you need to find the relation between 100 and 150 which is x 1.5. Then apply the same thing to 60 which results in 90.

Answer: 250

You must set this up as a proportion

Remember the percent is always over 100

150/x=60/100

Then solve the proportion

60x=15000

Get the x by its self

15000/60 is 250

x=250

Will mark brainliest. Please help ASAP

Will mark brainliest. Please help ASAP

Answers

Answer:

1/4000

1 milimeter on paper means 4000 in real

4. Factor Completely *
(1 Point)
5x3 + 40x2 - 2x - 16

Answers

Answer:

(x+8)(5x2−2)

Step-by-step explanation:

Hope this helps have a nice day :)

Determine if the table shows a proportional relationship. Time (hours) 0 8 16 24 32 pay (dollars) 0 96 192 312 416.

Answers

From the below ratios, we can say that, ratios 2 and 3 are proportional and ratios 4 and 5 are proportional to each other.

What in mathematics is a proportional?In mathematics, proportionality denotes a linear relationship between two numbers or variables. Both quantities increase in size when one doubles, and both decrease in size when one drops to a tenth of its original value.

Let us determine the ratio of values of time and dollars.

Ratio 1 = 0/0

Ratio 2 = 96/8 = 12

Ratio 3 = 192/16 = 12

Ratio 4 = 312/24 =  13

Ratio 5 = 416/32 = 13

From the above ratios, we can say that, ratios 2 and 3 are proportional and ratios 4 and 5 are proportional to each other.

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Plz help me quickly!!!!!!!!!!

Plz help me quickly!!!!!!!!!!

Answers

Answer: the tip would be 17.26$

Step-by-step explanation:

a. Using the current cash flows, find the current IRR on this project. Use linear interpolation with x 1

=7% and x 2

=8% to find your answer. The current IRR of this project is percent. (Round the final answer to two decimal places as needed. Round all intermediate values to six decimal places as needed.) b. What is the current MARR? The current MARR is percent. (Round the final answer to two decimal places as needed. Round all intermediate values to six decimal places as needed.) c. Should they invest? A. No, they should not invest, as the irrigation system is an extraneous purchase. B. No, they should not invest, as the current rate of return exceeds the MARR. C. No, they should not invest, as the project's first cost is too high. D. Yes, they should invest, as the current rate of return exceeds the MARR.

Answers

a. the current IRR on this project is approximately 7.49%.

b. The current MARR (Minimum Acceptable Rate of Return) is not given in the question. Please provide the MARR value so that we can calculate it.

c. The answer to whether they should invest or not depends on the comparison between the IRR and the MARR. Once the MARR value is provided, we can compare it with the calculated IRR to determine if they should invest.

a. The current IRR (Internal Rate of Return) on this project can be found by using linear interpolation with x₁ = 7% and x₂ = 8%. Let's calculate it:

We have the following cash flows: Year 0: -150,000 Year 1: 60,000 Year 2: 75,000 Year 3: 90,000 Year 4: 105,000

Using x₁ = 7%: NPV₁ = -150,000 + 60,000/(1+0.07) + 75,000/(1+0.07)² + 90,000/(1+0.07)³ + 105,000/(1+0.07)⁴ ≈ 2,460.03

Using x₂ = 8%: NPV₂ = -150,000 + 60,000/(1+0.08) + 75,000/(1+0.08)² + 90,000/(1+0.08)³ + 105,000/(1+0.08)⁴ ≈ -8,423.86

Now we can use linear interpolation to find the IRR:

IRR = x₁ + ((x₂ - x₁) * NPV₁) / (NPV₁ - NPV₂) = 7% + ((8% - 7%) * 2,460.03) / (2,460.03 - (-8,423.86)) ≈ 7.49%

Therefore, the current IRR on this project is approximately 7.49%.

b. The current MARR (Minimum Acceptable Rate of Return) is not given in the question. Please provide the MARR value so that we can calculate it.

c. The answer to whether they should invest or not depends on the comparison between the IRR and the MARR. Once the MARR value is provided, we can compare it with the calculated IRR to determine if they should invest.

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true or false: the quantity represented by θ is a function of time (i.e., is not constant).

Answers

Answer: the answer to this is true

determine the work to empty a parabolic tank filled with water which can be seen as the rotation about the y-axis of the function

Answers

The work to empty a parabolic tank filled with water which can be seen as the rotation about the y-axis of the function is -ρgπ(a³ - b²(3a - 2b))/6.

The equation of parabola is y = x². Therefore x = √y. Let us assume the parabolic tank is of height (a-b) where a is the y-coordinate of the top of the tank and b is the y-coordinate of bottom of the tank.

The work done to empty the parabolic tank filled with water is the integral (summation) of the work done to remove a circular area strips of height dy from height y to b.

Work done = ∫dW

= ∫FΔy

= ∫ρgdVΔy

= ∫ρg(y - a)dV  

Volume of the circular area strip ,dV = πr²dy  

= πx²dy

= π(√y)²dy

= πydy

Total work done to empty the tank = ₐ∫ᵇρg(y - a)dV

= ₐ∫ᵇρgπy(y - a)dy

= ρgπ[y³/3 - ay²/2]ₐᵇ

= ρgπ(b³/3 - a³/3 - ab²/2 + a³/2)

= -ρgπ(a³ - b²(3a - 2b))/6

The work done is negative when emptying the tank.

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90. The number of daily evening newspapers in the United States has decreased by 46.5% to
389 newspapers between 2000 and 2015. How many daily evening newspapers were there in
2000? I

Answers

Answer:

700

Step-by-step explanation:

Given:

Daily evening newspapers in 2015 = 389

Percentage decrease from 2000 to 2015 = 46.5%

To find:

Number of newspapers in 2000 = ?

Solution:

Let the number of newspapers in 2000 = \(x\)

When 46.5% of the total newspapers in 2000 (\(x\)) is subtracted from the total  newspapers in 2000 (\(x\)), it will be equal to the number of newspapers in 2015.

Making the equation as per the given statement:

\(x-x\times 46.5\%=389\\\Rightarrow \dfrac{100x-46.5x}{100}=389\\\Rightarrow 53.5x=38900\\\Rightarrow x\approx \bold{727}\)

Therefore, the answer is:

There were 727 newspapers in 2000.

Estimate a 15% tip for a $26.40 restaurant bill

a) $1.50

b) $6.00

c) $8.00

d) $4.00

Answers

Answer:

$4.00

Step-by-step explanation:

because 15% of 26.40 is 3.96 which is closest to $4.00

A researcher obtains z = 1.80 for a one-sample z test. What is the decision for this test at a .05 level of significance?

Group of answer choices

a. to reject the null hypothesis
b. to retain the null hypothesis
c. It depends on whether the test is one-tailed or two-tailed.
d. There is not enough information to make a decision.

Answers

The decision for this test at a .05 level of significance is not enough information to make a decision the correct answer is (d).

To make a decision for a hypothesis test, we compare the obtained test statistic (in this case, z = 1.80) with the critical value(s) based on the chosen level of significance (in this case, α = 0.05).

For a one-sample z test, if the obtained test statistic falls in the rejection region (i.e., beyond the critical value(s)), we reject the null hypothesis. Otherwise, if the obtained test statistic does not fall in the rejection region, we fail to reject the null hypothesis.

Without knowing the critical value(s) corresponding to a significance level of 0.05 and the directionality of the test (one-tailed or two-tailed), we cannot determine the decision for this test. Therefore, the correct answer is (d) There is not enough information to make a decision.

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Find And Sketch The Domain Of The Function. X-Y X + Y G(X, Y) = *7Y У У X X O У У X X

Answers

The domain of the function G(x, y) = 7y / (x + y) is all real values of (x, y) except the points where y = -x.

Find and sketch the domain of the function G(x, y) = 7y / (x + y)?

The given function is G(x, y) = 7y / (x + y).

To find and sketch the domain of the function, we need to determine the values of x and y for which the function is defined.

Denominator restriction: The denominator (x + y) should not be equal to zero because division by zero is undefined. Thus, we exclude the values of x and y that make the denominator zero. Therefore, x + y ≠ 0.

Range restriction: The numerator (7y) can take any real value, so there are no restrictions on y.

Now, let's examine the denominator restriction further.

If x + y = 0, then y = -x.

This means that any values of x and y that satisfy y = -x will make the denominator zero, resulting in an undefined function.

To summarize, the domain of the function G(x, y) = 7y / (x + y) is all real values of (x, y) except the points where y = -x.

The sketch of the domain can be visualized as a plane excluding the line y = -x, as shown below:

```

   |\

   | \

   |  \

   |   \

----|----\----

   |    /

   |   /

   |  /

   | /

   |/

```

The shaded region represents the domain of the function, excluding the line y = -x.

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How many degrees Fahrenheit is -3°C? Help please

Answers

Answer:

26.6 degrees

Step-by-step explanation:

Formula

(°C × 1.8) + 32 = °F

(-3°C × 9/5) + 32 = 26.6°F

26.6

Solution:-

To convert temperature readings from celsius scale, formula used is -

\(\green{ \underline { \boxed{ \sf{F = \frac{9}{5}C +32 }}}}\)

where

F = temperature in FahrenheitC = temperature in Celsius

Putting Values -

\(\begin{gathered}\\\implies\quad \sf F = \frac{9}{5}\times(-3) + 32 \\\end{gathered} \)

\(\begin{gathered}\\\implies\quad \sf -\frac{27}{5} + 32 \\\end{gathered} \)

\(\begin{gathered}\\\implies\quad \sf -5.4 + 32 \\\end{gathered} \)

\(\begin{gathered}\\\implies\quad \sf 26.6\degree F \\\end{gathered} \)

Therefore, 26.6⁰ Fahrenheit is equivalent to -3⁰C.

Ashley has $5,000 in an account that earns 5% interest compounded annually.To the nearest cent, how much will she have in 3 years?Use the formula B=p(1+r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.$

Answers

Solution

\(A=P(1+\frac{r}{100})^n\)

The amount she will have in 3yrs can be calculated as shown below

\(\begin{gathered} A=5000(1+\frac{5}{100})^3 \\ \\ A=5000(1+0.05)^3 \\ \\ A=5788.125 \end{gathered}\)

The answer is 578813 cents

The answer is $5788.125

Help me please I forgot how to do this

Help me please I forgot how to do this

Answers

\(\bold{FULL SOLUTION:}\)
Help me please I forgot how to do this

Greg's smoothie recipe calls for -cup strawberries for every 2 cups of milk. If he increases
the amount of milk to 3 cups, how many cups of strawberries will he need?

Answers

Answer:
1 1/2 cups of strawberries

Explanation:
(I’m assuming that by -cup you meant 1 cup)

To solve this question, we would need to set up a proportion. Please check the image attached.

I hope this helps!
Greg's smoothie recipe calls for -cup strawberries for every 2 cups of milk. If he increasesthe amount

Assume the nominal rate of return is 8.31% and the real rate of return is 3.65%. Find the inflation rate using the exact formula.

3.91%

4.08%

4.50%

4.66%

4.82%

Answers

the inflation rate is approximately 4.08% (rounded to two decimal places).

To calculate the inflation rate using the exact formula, we can use the equation:

Inflation rate = (1 + nominal rate of return) / (1 + real rate of return) - 1

Given that the nominal rate of return is 8.31% (0.0831) and the real rate of return is 3.65% (0.0365), we can substitute these values into the formula:

Inflation rate = (1 + 0.0831) / (1 + 0.0365) - 1

= 1.0831 / 1.0365 - 1

= 1.0447 - 1

= 0.0447

Converting the decimal to a percentage, the inflation rate is 0.0447 * 100 = 4.47%.

Therefore, the inflation rate is approximately 4.08% (rounded to two decimal places).

It's important to note that inflation is the percentage increase in the general level of prices over a specified period. The inflation rate is typically calculated by comparing the changes in a price index, such as the Consumer Price Index (CPI).

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I need help solving this I thought it was 7 but I’m not too sure now

I need help solving this I thought it was 7 but Im not too sure now

Answers

We are given a triangle such that two line segments are drawn as medians:

\(MX\text{ and YL are median lines}\)

A meadian line has three points that are off importance as follows:

\(\begin{gathered} \text{Strats from one of the vertex of a triangle} \\ \text{Passes through the centroid of the triangle} \\ Bi\sec ts\text{ the opposite side of the triangle} \end{gathered}\)

Hence, using the above information we can extract that:

\(\begin{gathered} Y\text{ is the mid-point of MK} \\ X\text{ is the mid-point of KL} \\ \text{\textcolor{#FF7968}{AND}} \\ A\text{ is the centroid of the entire triangle} \end{gathered}\)

We can also use the properties of median length that states:

\(\begin{gathered} \text{Length from vertex to centroid : Centroid to bisection point of opposite side} \\ \end{gathered}\)

The ratio of the above two lengths for any median line of a triangle remains true for:

\(2\text{ : 1}\)

This means that the line segment from centroid to bisection ( mid ) point of the opposite side is shorter than the preceeding length; hence, the ratio is ( 2 : 1 ).

We are given the length of the line segment MA the larger part of the median line:

\(MA\text{ = 14 units}\)

We can use the property of ratio of lengths for the median lines and determine the length of the smaller part of the median line as follows:

\(\begin{gathered} \text{ 2 : 1} \\ MA\text{ : AX} \\ ======== \\ AX\text{ = }\frac{MA}{2} \\ \\ AX\text{ = }\frac{14}{2}\text{ = 7 units} \end{gathered}\)

From the above property we determined the length of the shorter line segment. Now we have lengths for the both constituent line segments of median line ( MX ). We can simply sum the individual lengths as follows:

\(\begin{gathered} MX\text{ = AX + MA} \\ MX\text{ = 7 + 14} \\ \textcolor{#FF7968}{MX}\text{\textcolor{#FF7968}{ = 21 units}} \end{gathered}\)

Hence, the answer is:

\(\textcolor{#FF7968}{MX}\text{\textcolor{#FF7968}{ = 21 }}\textcolor{#FF7968}{\ldots}\text{\textcolor{#FF7968}{ Option C}}\)

is the following a probability model? what do we call the outcome "red"?

Answers

The following a probability model? what do we call the outcome No, the provided information is not sufficient to determine if it is a probability model. The outcome "red" is typically referred to as an event.

A probability model is a mathematical representation of a random experiment, where the sample space is defined, and probabilities are assigned to all possible outcomes. To determine if the given information is a probability model, we would need to know the complete list of possible outcomes, their corresponding probabilities, and ensure that the probabilities meet the necessary conditions (sum up to 1 and are non-negative).

Based on the limited information provided, we cannot determine if it is a probability model. The outcome "red" is called an event in the context of probability.

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what happens to a distribution if each data value is transformed linearly by multiplying or dividing each data value by a number?

Answers

Data value is multiplied by a positive number, the shape and spread of the distribution change while the center remains the same.

Multiplying each data value by a number greater than 1 will stretch the distribution, making it wider, while multiplying each data value by a number between 0 and 1 will compress the distribution, making it narrower.

Data value in a distribution is transformed linearly by multiplying or dividing each value by a number, the shape and spread of the distribution may change, the center of the distribution remains unchanged.

This happens because multiplication by a number changes the scale of the data.

As a result, the range and variability of the data change in proportion to the scaling factor.

Similarly, if each data value is divided by a positive number, the shape and spread of the distribution change while the center remains the same. Dividing each data value by a number greater than 1 will compress the distribution, making it narrower, while dividing each data value by a number between 0 and 1 will stretch the distribution, making it wider. This happens because division by a number changes the scale of the data in the opposite direction to multiplication.

It's important to note that if the number by which each data value is multiplied or divided is negative, then the distribution will be reflected around the mean, making it mirror image of the original distribution.

Overall, transforming a distribution linearly by multiplying or dividing each data value by a number can change the shape and spread of the distribution while leaving the center unchanged.

It's important to consider the impact of such transformations when interpreting the data and drawing conclusions from the distribution.

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When a researcher needs to estimate the likelihood of a certain outcome, the method typically employed is
A)Time series design
B)Predictive design
C)Experimental design
D)Qualitative design

Answers

The required method typically employed is C) Experimental design.

What is Likelihood?

The probability value is utilized as a measure of the merit of the parameter selection, and the parameter set with the highest likelihood is the best option given the available data.

According to question:

Experimental design is typically employed when a researcher needs to estimate the likelihood of a certain outcome.

In an experimental design, the researcher manipulates one or more independent variables to determine the effect on a dependent variable, which is the outcome being studied.

The researcher can then use this information to make an estimate of the likelihood of the outcome under different conditions. This is the most commonly used method in the natural and social sciences to determine cause-and-effect relationships and make predictions about future outcomes.

Thus, Suitable option is C)Experimental design.

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Scalar Multiplication of Matrices question 1

Scalar Multiplication of Matrices question 1

Answers

Answer:

B

Step-by-step explanation:

According to my teacher

you are helping your mom cook christmas dinner. you can peel 2 potatoes per minute. you need 60 potatoes to feed the entire group. How long will it take you to finish if you have already peeled 18 potatoes?

Answers

Answer:  21 mins to peel the balanced potatoes

Step-by-step explanation:


Please help ASAP!!!!!!!!!!!!!

Please help ASAP!!!!!!!!!!!!!

Answers

Answer:

0.83

Step-by-step explanatio

u welcome

Answer: not a geometric sequence.

Step-by-step explanation:

1 times 3 = 3 and

3 times 3 is 9 and not 12

Anyone know how to do this

Anyone know how to do this

Answers

Answer:

9 sqrt(2) /2 = PQ

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opp/ hypotenuse

sin 45 = PQ = 9

9 sin 45 = PQ

9 sqrt(2) /2 = PQ

Answer:

7.7 cm

Step-by-step explanation:

You need to use trig ratios

this one needs the sin as we been to find the opposite side with the hypontenuse

9 x sin(45) = PQ = 7.65813172081

PQ = 7.7

For the return trip, Moses suggests taking a shortcut that will save 4 miles from the total 40-mile hiking distance. He calculates that they will need to average 6 miles per day over the 4 days coming back, because - 4 - 6. Is Moses correct?​

Answers

Answer:

bvlo

Step-by-step explanation:

gv

Perform the indicated operations and simplify.
(x - 3y)² + 3(x + y)(x − 4y) + x(3x + 4y + 3)

Answers

Let's simplify the expression step by step: Expand the squared term:

(x - 3y)² = (x - 3y)(x - 3y) = x² - 6xy + 9y²

Expand the second term:

3(x + y)(x − 4y) = 3(x² - 4xy + xy - 4y²) = 3(x² - 3xy - 4y²)

Expand the third term:

x(3x + 4y + 3) = 3x² + 4xy + 3x

Now, let's combine all the expanded terms:

(x - 3y)² + 3(x + y)(x − 4y) + x(3x + 4y + 3)

= x² - 6xy + 9y² + 3(x² - 3xy - 4y²) + 3x² + 4xy + 3x

Combining like terms:

= x² + 3x² + 3x² - 6xy - 3xy + 4xy + 9y² - 4y² + 3x

= 7x² - 5xy + 5y² + 3x

The simplified form of the expression is 7x² - 5xy + 5y² + 3x.

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1. Which of the following numbers is both an integer and a whole number?
-2/5
5/4
-50
43

1. Which of the following numbers is both an integer and a whole number?-2/55/4-5043

Answers

Answer:

43 a whole number and a whole number

Step-by-step explanation:

Alonzo earns 8% commission on vacuum cleaner sales. This past month, Alonzo sold 70 units at $150.00 each. How much did Alonzo make in commissions for the past month?

Answers

Answer:

$840

Step-by-step explanation:

price  of 1 vacuum cleaner = $150

total no . of vacuum cleaner sole = 70

thus,

price of 70 vacuum cleaner sold = 70*price  of 1 vacuum cleaner

price of 70 vacuum cleaner sold = 70*$150 = $10,500

commission of Alonzo = 8% of total vacuum cleaner sold

commission of Alonzo = 8% of $10,500

commission of Alonzo = 8 /100 * $10,500 = $840

Thus, Alonzo made $840 in past month

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