Sylvio's flight is scheduled to travel 1,792 miles in 3.5 hours. At what average rate will the plane have to travel to complete the trip on time?

Question

Help me with my homework 

Answer 1

You can set this up as a proportion. You know you are traveling 1792 miles in 3.5 hours, you need to determine how many miles you are going in 1 hour. Set it up as a proportion: 1,792/3.5 = x/1

 

You can cross multiply to solve

 

1792*1 = 3.5 *x

1792=3.5x

 

solve for x by completing the inverse operation attached to your variable (x) 

 

you are multiplying so the inverse would be division

 

Whatever you do to one side you must do to the other

 

1792 /3.5 = 3.5x/ 3.5

 

divide to solve for x.

 

This represents the miles per hour 

 

 

Answer 2

This is simply asking for a rate in miles per hour.

 

Divide 1,792 miles by 3.5 hours to get average rate

average rate = 1792/3.5 = 512mph