7q^2 - 28 = 0
7q^2 = 28
q^2 = 4
q = 4^0.5
q = +2 / -2
I think you'll have to divide 35 by 7 to get the number of hours.
35/7 = 5
So 35 people will take 5 hours.
Hope i m right :)
Answer:
5 15/22 hours
5.6818 hours
Step-by-step explanation:
Distance is equal to the rate times the time
D = rt
We know the rate = 88 km/hr and the distance = 500 km
Substitute these in
500 = 88 *t
Divide each side by 88
500/88 = 88t/88
5 15/22 hours
5.6818 hours
The height is 20 so plug in the area equation and your answer is 150 units squared