Question

After the outbreak of a mysterious disease, the average wait time at a hospital increased by
\[70\%\]. Before the outbreak, the average wait time at the hospital was
\[m\] minutes.
Which of the following expressions could represent the average wait time at the hospital after the outbreak?
Choose 2 answers:
A
\[m+0.7\]
B
\[m+70\]
C
\[1.7m\]
D
\[0.7m\]
E

\[\dfrac{170}{100}m\]

Answer 1

Increase by 70% means multiply by 1 + 0.70 = 1.7, so the new wait time is 1.7m. That equals (170/100)m.

Choices: C and E.