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easy math!
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@pooja195
@abb0t
20% of some number is 80.
20% of x is 80.
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Normally, when you are given a problem, such as: What is 10% of 100, you do this: \(\color{black}{100\times \dfrac{1}{10}}\)
This time you are given that: \(\color{black}{\color{blue}{x}\times \dfrac{1}{20}=80}\)
Do you understand how I am arriving at this equation?
so the anewer is 1/20?
i can't fin the answer @SolomonZelman
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replace of with times and is with equals and % with times 1/100 \[20 \% \cdot x=80 \\ 20 \cdot \frac{1}{100} \cdot x=80\] solve for x
reduce 20/100 first
@ekkerking you there?
its 400 guys the answer
\[\frac{20}{100}x=80 \\ \frac{1}{5}x=80 \\ x=80 \cdot 5=400\] yep good job
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