Question

Maria's math test had 25 questions she got 84% correct how many did she get wrong

Answer 1

$\frac{x}{25}=84% \\ \frac{x}{25}=.84 \\ 25( \frac{x}{25})=(.84)(25) \\ x=21$
Maria got 21 correct.

Number wrong = Total - Number right
y = 25 - 21
y = 4

Maria got 4 wrong.

Hope this helps!

Answer 2

To see how much she got correct we need to do
(84/100)×25=21
so she got 21 correct out of 25
so 25-21=4
so she got 4 wrong