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3 years ago

The surface area "S" of a cube with side length e is S= 6e^2.

Mathematics

1 answer:

LuckyWell [14K]3 years ago

8 0

Just plug in the numbers.
S=6e^2
150=6e^2 divide by 6 to both sides
25=e^2 take the square root of both sides
e=5

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3 years ago

A zoo has a black rhinoceros that weighs 18 times as much as an average-size chimpanzee. The rhinoceros weighs 2,250 pounds.

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Let's first represent the weight of the black rhinoceros and chimpanzee with variables. We will assign r for the rhinoceros and c for the chimpanzee.

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To solve this equation, we can divide both sides by 18 to get c by itself and know what it's value is.

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We can remove the $\frac{18}{18}$ from the right side to be left with c. We can also divide 2250 by 8 to get the weight of an average-size chimpanzee.

$c=\frac{2250}{18}\\ c=125$

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