What is 30% of 70?? please help

asked Aug 21, 2020 48.1k views

1 vote

by Hsarp

5.4k points

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6 votes

Answer:

Explanation:

Method 1:

$p\%=(p)/(100)\\\\30\%=(30)/(100)=(3)/(10)=0.3\\\\30\%\ of\ 70\ is\\\\0.3\cdot70=21$

Method 2:

$\begin{array}{cccc}100\%&-&70&\text{divide both sides by 10}\\\\10\%&-&7&\text{multiply both sides by 3}\\\\30\%&-&21\end{array}$

Thivan Mydeen answered Aug 28, 2020

6.2k points

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