63 miles in 270 minutes will mean that nolan rides his bike at a distance of 63/270 miles in one minute.
there are 60 minutes in an hour. So to find out the distance he covers in 1 hour, 63/270 × 60 will give you 14 miles.
Since the question is asking for the average speed, nolan rides his bike at 14 miles per hour i think.
Multiply it out
x^2 + 4x -8x -32
Combine like terms
x^2 -4x - 32
I solved and the mean is 10
Answer:
I think c 430 and if it is wrong I'm so sorry
