A test driver has to drive a car on a 1-mile track for two rounds in a way, that his average speed is 60 mph. On his first round
his average speed is 40 mph. How fast does he need to drive, to get the right speed average?
1 answer:
to average 60 mph for 2 laps his total speed needs to equal 60 x 2 = 120
his first lap was 40 so his 2nd lap needs to be 120-40 = 80 mph
You might be interested in
Common difference: 6
First term: 7
Second term: 13
Third term: 19
Fourth term: 25
Fifth term: 31
I hope this is correct and helps!
2 x 230 = 231
I’m not 100% sure if this is correct?? Hope it helps though
Answer:
9in
Step-by-step explanation:
54 = 1/2(12*x)
54 = 6*x
x = 9
Check
12 x 9 = 108
108/2 = 54
Step-by-step Explanation:
x=6,x=2
