what is 13/40 as a percentage and a decimal
plzz help
One way is to do this:
$\displaystyle \frac{13}{40}=\frac{x}{100}$
Cross multiply and solve for x.
$\displaystyle 40x = 1300$
$\displaystyle x=32.5$
So, substitute back into the expression:
$\displaystyle \frac{32.5}{100}$
Since percent means "per hundred",
$\displaystyle \frac{32.5}{100}$ means 32.5%
To convert to a decimal, simply move the decimal left 2 places and drop the % sign. Thus 32.5% = .325
A percent is a ratio whose second term is 100. Percent means parts per hundred. The word percent comes from the Latin phrase per centum, which means per hundred. In mathematics, we use the symbol % for percent.
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