Kimberly traveled to her friend's house and went 300miles in 5 hour. on her way home she took a different route and trveled 420 miles in 7 hours. are these ratios equivalent? use proportion to show complete work.

300 miles/5 hours=60 miles per hour
420 miles/7 hours=60 miles per hour

 

therefore they both have an equivalent proportion of 60 miles per hour

Here the average speed for going to friends house = 300/5 miles/hr
= 60 miles/hour

And average speed while coming back = 420/7 miles/hour
=60 miles/hour

I.e. 300/5 = 420/7 = 60 miles/hr

Hence the ratios are equivalent in both ways