Renaldo can rollerblade 9.7 miles per hour. Eliza can rollerblade 8.2 per hour.How much farther will Renaldo rollerblade in 0.75?

Question

Renaldo can rollerblade 9.7 miles per hour. Eliza can rollerblade 8.2 per hour.How much farther will Renaldo rollerblade in 0.75?

Answer 1

let d = the distance that Renaldo rollerblades further than Eliza

 

d = (9.7 mph - 8.2 mph)*(0.75 h)

 

d = (1.5 mph)*(0.75 h)

 

d = 1.125 miles

Answer 2

Hi, Veronica!

 

Another way to look at this problem is as follows:

 

The distance Renaldo travels 9.7 x .75 = 7.275 miles

 

The distance Eliza travels 8.2 x .75 = 6.15 miles

 

How much farther did Renaldo go?  7.275 - 6.15 = 1.125 miles