Adriver drove for 3 hours at a certain speed. if he drove 12 more miles at the same speed, the distance would be 132 miles. at what speed did he drive?

40mph

Explanation:

1st leg DATA:

time = 3 hrs ; speed = r mph ; distance = 3r miles

2nd leg DATA:

speed = r mph ; distance = 12 miles

3r + 12 = 132

3r = 120

rate = 40 mph

mass and volume are the answers you are looking for

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles