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OverLord2011 [107]
2 years ago
7

Carl and Joseph are recycling newspapers for a school project. They have collected 600 pounds of newspaper, which they must sepa

rate into 20-pound bales to take to the recycling center. Carl can make a bale in 15 minutes, and Joseph takes 10 minutes to make a bale. How many hours will it take them to put all the newspaper into bales if they work together?
Mathematics
1 answer:
olga55 [171]2 years ago
7 0

It would take both Carl and Joseph 0.1 hours to complete the work.

<h3>Equation</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let t represent the amount of time in hours it would take them to finish the work.

For Carl, time = 15 minutes = 0.25 hr

For Joseph, time = 10 minutes = 0.167 hr

Hence:

[(1/0.25) + (1/0.167)]t = 1

t = 0.1 hr

It would take both Carl and Joseph 0.1 hours to complete the work.

Find out more on Equation at: brainly.com/question/13763238

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Solve 9/10=z/8 . Round to the nearest tenth.
kompoz [17]
\boxed {Question}
\frac{9}{10} =  \frac{z}{8}

\boxed {Cross \  multiply}
10z = 8 \times 9

\boxed {Evaluate}
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z = 7.2

\Longrightarrow \bf \ Answer \ : \ z = 7.2

4 0
3 years ago
A 90 oz. bottle of shampoo is sold for $18.95. What is the price per ounce
Veseljchak [2.6K]

This sets up as a very commonly  used proportion.

90 oz / 18.95 = 1 oz / x             Cross multiply

90 x = 18.95                              Divide by 90

x = 18.95 / 90

x = 0.21 dollars or 21 cents.

So each ounce of shampoo costs 0.21 dollars or 21 cents.

This is a very handy way to check best deals. Stores have trained us for years to believe that the more we buy of a brand, the better the price. It isn't always true. Sometimes buying the  smaller quantity is the better deal. There is only one way to be sure and that's to do a proportion like this one.

Try this is an example. The same company makes a smaller container of shampoo of 45 oz for 9.15. How much is 1 oz and which is the better deal? You should get 0.20333 dollars so this is marginally (just) the better deal.

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3 years ago
Select the action you would use to solve 3x = 12. Then select the property
podryga [215]

Answer:

C: Divide both sides by 3

F: Division property of equality

Step-by-step explanation:

3x=12\\x=\frac{12}{3}\\x=4

3 0
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50 POINTS !!<br><br><br> PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
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