Question

A cyclist rode 3.75 miles in 0.3 hours. Q1.How fast was she going in miles per hour? Q2.At that rate,how long will it take her to go 4.5 miles?

Answer 1

Q1 12.5 miles per hour

Q2 = .36 hours

Explanation:

We know the formula for distance relate to rate and time

distance = rate * time

Q1. 3.75 miles = rate * .3 hours

Divide each side by .3

3.75 miles /.3 hours = rate

12.5 miles per hour

Q2. 4.5 miles = 12.5 miles per hour * time

Divide each side by 12.5 miles per hour

4.5 miles / 12.5 miles per hour = 12.5 miles per hour * time/ 12.5 mph

.36 hours = time

Answer 2

1)Distance covered by cyclist=3.75 miles.

Time =0.3 hours.

Speed= Distance ÷Time

Speed =3.75÷0.3=12.5 miles per hour.

2) Speed = 12.5 miles per hour, Distance = 4.5 miles .

Time = Distance ÷Speed.

Time = 4.5÷12.5=0.36 hours.

Time taken to cover 4.5 miles is 0.36 hours.