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The length of Giselle's arm is 27 inches. The length of her lower arm is 17 inches. About what percent of Giselle's arm is her lower arm?

1 Answer

Jun 6, 2018

About $67 %$ $67%$

Explanation:

The word 'about' suggests that just a quick estimate is required, rather an accurate answer.

Round $27 and 17$ $27 and 17$ to $30 and 20$ $30 and 20$ respectively.

What percentage is $20$ $20$ out of $30$ $30$ ?

$\frac{20}{30} = \frac{2}{3}$ $20/30 = 2/3$

$\frac{2}{3}$ $2/3$ as a percentage is $66 \frac{2}{3} %$ $66 2/3%$

Her lower arm is aboyt $67 %$ $67%$ of the length of her arm.

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