Answer:
9486
Step-by-step explanation:
x= 99 and y= 5^3 = 125
=> ( 99^2 - 125 + 10 ) -200 = (9801 -125 + 10) - 200 = 9686 -200 = 9486
Answer:
65 mph on level road
Step-by-step explanation:
Set b as average speed on the level road and (b-20) = average speed on the winding road
Distance = speed * time
Level Road distance + winding road dististance = 285 miles
Substituting b and (b-20), we have,
3b + 2(b-20) = 285
3b + 2b - 40 = 285
5b = 285 + 40
5b = 325
b= 325/5
b = 65 mph on level road
Answer:
4
Step-by-step explanation:
2 plus 2 is 4
