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devlian [24]
3 years ago
6

Reagan surveyed a number of her classmates about what time they usually go to bed. Of the fifteen classmates she asked, nine sai

d 10 p.m. What percent of the students is this?
Mathematics
1 answer:
sleet_krkn [62]3 years ago
8 0
9 out of Reagan's 15 classmates go to bed at 10 p.m.

As a fraction, this would be 9/15.

To convert a fraction to a decimal, you just divide the numerator by the denominator.

Thus, 9 ÷ 15 = 0.6

To turn a decimal into a percentage, you multiply the decimal by 100, and then add a percentage sign.

0.6 * 100 = 60%

Therefore, 60% of Reagan's classmates go to bed at 10 p.m.

Hope this helps!
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General Formulas and Concepts:

<u>Pre-Algebra</u>

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Step-by-step explanation:

<u>Step 1: Define equation</u>

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<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute 9:                              9x + 72 = -9z - 72
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Here we see that we will get only 1 solution for <em>z</em>.

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2 years ago
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Step-by-step explanation:

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I don't agree with his statement. The first part says that he was paid $9.20 for the first 40 hours so we multiply them (9.20 x 40) to get 368. Then it says that he was paid 1.5 times that rate for every hour after that. The rate is "$9.20 per hour" so you find 1.5 times $9.20. You multiply $9.20 by 1.5 to get $13.80 per hour. Now you have to find how much money he got after the initial 40 hours. It says he worked 42.25 hours, and we already figured out how much money he got the first 40 hours ($368). So for the remaining 2.25 hours, Mr.Evens is paid $13.80 an hour. So we multiply 2.25 by $13.80 to get $31.05. To find out the total amount of money accumulated, we add. $368 + $31.05 is $399.05 which means that Mr.Evens is not correct. Hope this helped :]
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