You can buy 2 DVDs for the same price you would pay for 3 CDs selling for $13.20 a piece.Explain how you could find the price of 1 DVD.

Answers

Answer 1

Answer: So,

3 CD's sell for $13.20 each.
3 * 13.20 = $39.60

$39.60 is also the price for 2 DVD's.

Divide $39.60 by 2.
$19.80

Each DVD is $19.80.

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Roy purchased different cardboard pieces that had the same ratio of the length to the width. The table below shows the length and width of some cardboard pieces Roy bought: Length (inches) Width (inches) 6 5 12 10 18 15 24 20 ? 25 The missing value in the table is ______ inches. Numerical Answers Expected! Answer for Blank 1:

Answers

6 to 5, 12 to 10, 18 to 15, 24 to 20, x to 25

Let's take a look at x/25 ratio, which has to be equal 6/5.

$(x)/(25)= (6)/(5) \n 25*6=5x\n 5x=150\n x=30$

The answer is 30 inches.

Answer: 30 inches

Step-by-step explanation: First you figure what its going by then you wanna add the number that its going to the last number on the left then you get 30 its going by 6 so 24 + 6 = 30 so your answer is 30

What is square root of 1/25

Answers

the answer is 0.04. is there anything else you need help with.

Dan drove 246 miles using 9 gallons of gas. At this rate how many gallons of gas would he need to drive 410 miles ?

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He will need to use 15 gallons of gas.

To solve this problem, we can write and solve a proportion.

It would be:

246 / 9 = 410 / x

If you cross multiply and divide, you will get that x = 15.

Add the two expressions. 8k + 4 and 3k + 8

Answers

I believe the answer is 11k+12 it might be wrong..

ya i dont know but this is what i think aswell 11k+12

Helene spends 12% of her budget on transportation expenses. Write this percent as a fraction and as a decimal.

Answers

The decimal representation of 12% is 0.12 obtained by dividing the percentage amount by a hundred.

What is the percentage?

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

We know, 10% is equivalent to (10/100) = 0.1 in terms of decimal representation.

Given, Helene spends 12% of her budget on transportation expenses.

Therefore, The decimal representation of 12% is (12/100) = 0.12.

learn more about percentages here :

brainly.com/question/24159063

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3/25 is the fraction .12 is the decimal

7 times as much as sum of 1/3 and 4/5

Answers

So the formula is
7*(1/3+1/5) = x

First find the common denominator of the fractions. In this case the common denominator of 3 and 5 is 15 so we must convert them to 15ths. To do that we divide 15 by the denominator and take that answer and multiply the numerator by it.

So for 1/3 we take 15/3(denominator) = 5 and multiply the numerator (1) by it

5 * 1 = 5 so 1/3 converts to 5/15

Do the same for 1/5 we take 15/5 = 3 and multiply the numerator (4) by it

3*4 = 12 so 4/5 converts to 12/15

Now we add 5/15 and 12/15 = 17/15 so we have our formula now to

7*17/15

We make seven a fraction 7/1 and multiply across 7*17 = 119 and 15 * 1 = 15

We have 119/15 which when we divide and get 7 14/15 as your answer

find a common denominator aka 15
so 5/15 and 12/15
= 17/15 times 7/1
119/15

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