Sagot :
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
= 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
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
420 miles/7 hours=60 miles per hour
therefore they both have an equivalent proportion of 60 miles per hour