You know that the total race is 50 miles. If each lap is 10 miles and 4 laps have already been completed, there would be one lap left.
This is because of the following,
10x4 = 40
50-40 = 10
1 lap= 10 miles
Answer:
think it is c
Step-by-step explanation:
Answer:
$2000
Step-by-step explanation:
The amount of interest you pay (for simple interest) is the product of the original amount, the interest rate and the time in years. Let x be the original amount (how much money she borrowed):
720=x(0.09)(4)
720=0.36x
x=2000
Divide total money collected by amount charged per car to find number of cars washed.
=$291 total ÷ $3 a car
=97 cars
ANSWER: They washed 97 cars.
Hope this helps! :)
