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Arada [10]
3 years ago
15

A boy is n years old. His sister is four times as old. The sister's age is

Mathematics
1 answer:
Irina18 [472]3 years ago
5 0

The sister is 4<em>n</em><em> </em>yrs old.

That is because 4 times <em>n</em><em> </em>is 4<em>n</em><em>.</em>

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The permissible value of x is 0.13 and 3.65

4. Increasing the cutout of the box increases the volume until its dimension reaches 1.57. After that, the value of the volume decreases it reaches 4.

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