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

Answer:

$\frac{170}{100}m$

$1.7m$

Step-by-step 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

$=m+\frac{70m}{100}$

$=\frac{100m+70m}{100}$

$=\frac{170m}{100}$

$=1.7m$

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

$\frac{170}{100}m$

$1.7m$

Answer 2

Answer:

on khan academy, its a and b! :)

Step-by-step explanation: