Question

1.which of the following represents a unit rate?

A.$4/12
B.5/2
C.80/1
D.72/2

Answer 1

Converting rate to unit rate/price
Rate can be converted to unit rate simply by dividing the first term by second term. Consider an example:

Example; If a car travels 45 miles in 30 min, what is the rate at which the car is travelling?
Solution: If we express the rate in miles/hr, the rate would simply be 45/0.5 miles per hr which is 90 miles per hr. If we want to express in minutes, then the rate would be 45/30 = 1.5 miles per minute.

Answer 2

?

Answer 3

can anyone help? because I really don't understand what he just said

Answer 4

80/1