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3 years ago

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

She earned $75

I hope this was helpful, keep learning! :D

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3 years ago

Find all angles and pls show steps

Ghella [55]

Answer:

Both angles have a measure of 134degrees, y = 27degrees.

Step-by-step explanation:

As per what is given in the problem:

There are 2 parallel lines, both are intersected by a transversal.

Remember the theorem, when two parallel lines are intersected by a transversal, then the alternate exterior angles are congruent.

The is meanse that:

3y + 53 = 7y - 55

Solve using inverse operations:

3y + 53 = 7y - 55

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/4 /4

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Now, substitute back in to find the value of the angle:

3y + 53

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Since the angles are alternate exterior, they are congruent, hence both angles have a measure of 134degrees.

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3 years ago

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rewona [7]

Answer:

Not Similer

Step-by-step explanation:

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3 years ago

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Sonbull [250]

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$\large\displaystyle\text{$\begin{gathered}\sf Solve \ Absolute \ Value. \end{gathered}$}$

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2 years ago

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Firlakuza [10]

Answer:-3

Step-by-step explanation:

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3 years ago

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

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