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astra-53 [7]
3 years ago
10

Please answer right away

Mathematics
1 answer:
vitfil [10]3 years ago
4 0

Answer:

199 a 426 students

Step-by-step explanation:

first to see what amount we are talking about in each case, let's see how many students each percentage represents

22% of students:  (22 * ​​1420 students) /100  = 312.4 students

8% of students: (8*1420 students)/100 = 114.6 students

that is, that the average number of students who work part time is 312.4 students. And that number can vary up to 114.6 students above and up to 114.6 students below

that can be expressed as

22% + 8% = 312.4 + 113.6 = 426 students

and

22% -8% = 312.4-113.6 = 198.8≅ 199 students

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Fed [463]

Answer:

At 116 years and 8 months, the rate would be the same

The solution is not reasonable

Step-by-step explanation:

Given

m = 220 - a

m = 206 - (0.88 * a)

Solving (a): At what age would both rate be equal

To do this, we simply equate both expressions.

m = m

This gives

220 - a = 206 - (0.88 * a)

220 - a = 206 - 0.88 a

Collect Like Terms

0.88a - a = 206 - 220

-0.12a=-14

Divide both sides by -0.12

\frac{-0.12a}{-0.12} =\frac{-14}{-0.12}

a =\frac{-14}{-0.12}

a =\frac{14}{0.12}

Multiply fraction by 100/100

a = \frac{14*100}{0.12*100}

a = \frac{1400}{12}

a = 116\frac{8}{12}

<em>This implies at 116 years and 8 months, the rate would be the same</em>

Is the solution reasonable?

No, it is not reasonable, considering the life expectancy of women to be around 70-72 years old.

116 years old is way too bigger than the life expectancy.

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2 years ago
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Step-by-step explanation:

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Needs to be submitted soon pls help! ASAP! Thank u (also step by step explanation if can)
ozzi

Answer:

7

Step-by-step explanation:

3x+12x+12=7\\15x+12=7\\15x=-5\\x=\frac{1}{3}

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<h3>____</h3>

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