Question

Mrs.Rosso has to travel 390 miles on a highway. She drives 130 miles in 2 hours. If she has 7 hours to travel at that rate, will she arrive at her destination on time?

A) Yes she will arrive 1 hour early
B) Yes she will arrive 4 hours early
C) No she will arrive 1 hour early
D) No she will arrive 4 hours late

Answer 1

find rate of mph:
390/(130/2)
find how long it takes to get home:
390/65
6 hours to get home
answer is A

Answer 2

The correct option is A.

Explanation:

Total distance = 390 miles

It is given that she drives 130 miles in 2 hours.

`Speed=(distance)/(time)`

`Speed=(130)/(2)=65`

The speed is 65 miles per hour.

We need to find the time in which Mrs.Rosso covers 390 miles at the rate of 65 miles per hour.

`Time=(distance)/(speed)`

`Time=(390)/(65)`

`Time=6`

It means she can cover 390 miles in 6 hours. She have 7 hours. It means she will arrive 1 hour early.

yes, she arrive at her destination on time.

Therefore the correct option is A.