Answer
7:1
Step-by-step explanation:
Simplify both sides by 7
Answer:
5/6
Step-by-step explanation:
First you need the formula for SA of a cylinder: SA = 2(πr^2) + 2πr*h
(area of the top and bottom circles plus the side)
Then plug your values into the equation and rearrange to make h the subject:
1470.3 = 2π13^2 + 2π*13*h
26πh = 1470.3 - 338π
h = (1470.3 - 338π)/26π
=5.00042...
so h is approximately 5 units :)
Total miles:350+150=500
Total hours:4+3=7
Avg speed:500/7=71.429 mph