Atropical storm has been moving at 15 miles per hour for the past two days. bess recorded that the storm moved 135 miles yesterday and 75 miles today. for how many hours has bess been keeping track of the storm?

1) in first place you need establish a relation of miles per hour , 15 miles / h

the total miles that Bess has been keeping track the storm is 75+135 =210

2) Now  15 miles ___ 1 h

              210 miles ___x (h)  

x(h) = 210 miles * 1 h / 15 miles =  14 hrs Bess has been keeping track of the storm

Bess had been keeping track of the storm for 14 hours.

Step-by-step explanation:

Since we have given that

Number of miles he recorded yesterday = 135 miles

Number of miles he recorded today = 75 miles

Total number of miles = 135+75=210 miles

Speed = 15 miles per hour

So, Time taken is given by

Hence, Bess had been keeping track of the storm for 14 hours.