Question

a car traveled 120 miles at a certain average rate. by increasing its average rate by 10 mph, it traveled 160 miles in the same time it traveled 120 what is the average rate for the first trip

Answer 1

Answer: trip one= 30 mph

Explanation:

R*t= distance

First trip= r1*t1= 120 miles

Second trip= (R1+10)*t1= 160 miles

Solve for t1

T1=4

Use Equation from first trip

R1* 4= 120

R1= 30 mph