Question

After an 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 with M minutes. Which of the following expressions could represent the average time at the hospital after the outbreak? Choose two answers:

Answer 1

on khan academy, its a and b! :)

Explanation:

Answer 2

`(170)/(100)m`

`1.7m`

Explanation:

Here,

Before the outbreak, the average wait time at the hospital was m minutes,

Also, after outbreak it is increased by 70 %,

So, the average wait time at the hospital after the outbreak = The average wait time before outbreak + 70 % of the average wait time before outbreak

= m + 70 % of m

`=m+(70m)/(100)`

`=(100m+70m)/(100)`

`=(170m)/(100)`

`=1.7m`

Hence, the expressions could represent the average time at the hospital after the outbreak would be,

`(170)/(100)m`

`1.7m`