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crimeas [40]
3 years ago
13

Mary spent $15. If this was 20% of her earrings, how much money did she earned?

Mathematics
1 answer:
Fed [463]3 years ago
4 0

Hi, I'm happy to help!

First off, we need to arrange an equation for what is being asked. 15 is 20% of her earnings and we don't know her total earnings.

15=20%×__

We can write this percentage as

15=0.2×__

We then change the equation to do the inverse operation, which is division, this makes it easier to solve.

15÷0.2=__

Now, we solve

15÷0.2=75

<u>She earned $75</u>

<u></u>

I hope this was helpful, keep learning! :D

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Answer:

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Step-by-step explanation:

2w + 7 = 2(w + 5) - 8

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Combine like terms

2w+7 = 2w+2

Subtract 2w from each side

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Somebody help me!
tiny-mole [99]

Answer:

josh vendió 17 libros recaudando 306 dolares .

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Step-by-step explanation:

Sustituimos por variables :

libros que vendió Jessica = x

libros que vendió Josh = y

entonces:

x + y = 272

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Reemplazamos en la primela ecuacion :

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Answer:

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Step-by-step explanation:

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