Question

On her math test. Heidi correctly answered 36 of the 40questions. What percent of the questions did Heidi correctanswer?

Answer 1

The percent Heidi has correct can be obtained by the rule of three.

`\begin{gathered} 40\rightarrow100 \\ 36\rightarrow x \end{gathered}`

Then:

`x=(36\cdot100)/(40)=(3600)/(40)=90`

Therefore, Heidi anwered 90% of the questions correctly.