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3 years ago

14

60% of the students in a college class are over 25 years old. Of the remain students, 50% are younger than 21. what percentage o

f the students are between 21 and 25?

1 answer:

salantis [7]3 years ago

6 0

20% of the entire students on the campus are between 21 and 25

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The scale drawing of a rectangular room will be enlarged by a scale factor of 4 to create the actual room. The actual area of th

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Answer:

The expression is equal to $\frac{150}{4^{2}}$

The area of the scale drawing is $9.375\ ft^{2}$

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

let

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we have

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substitute and solve for y

$4^{2}=\frac{150}{y}$

$y=\frac{150}{4^{2}}=9.375\ ft^{2}$

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