Answer:
3.99
Step-by-step explanation:
Divide circumference by pi. The answer will be the circles diameter and then divide this by 2 for the radius
Answer: 2x^2-x+3
Average rate of car: x+3
Walking rate: x
The equation is
10/15 = x/x+3
So
x = 6
Average rate of car: 9 mph
Walking rate: 6 mph
A.) 1/49
B.) 1/512
