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postnew [5]
4 years ago
13

What is 30% of 70?? please help

Mathematics
1 answer:
melamori03 [73]4 years ago
4 0

Answer:

<h2>21</h2>

Step-by-step explanation:

<em>Method 1:</em>

p\%=\dfrac{p}{100}\\\\30\%=\dfrac{30}{100}=\dfrac{3}{10}=0.3\\\\30\%\ of\ 70\ is\\\\0.3\cdot70=21

<em>Method 2:</em>

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

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