Cheyenne drove 3000 miles in 75 hours. At this rate, how long will it take her to drive 4000 miles?
Mathematics
pandasarebae657
Question
Cheyenne drove 3000 miles in 75 hours. At this rate, how long will it take her to drive 4000 miles?
2 Answer

1. User Answers PHDFlopper
set up a proportion:
[tex] \frac{3000}{75} [/tex]=[tex] \frac{4000}{x} [/tex]
To solve cross multiply:
3000x=300000
divide both sides by 3000:
3000x/3000=300000/3000
x=100
It will take her 100 hours to drive 4000 miles assuming she continues to travel at this rate. 
2. User Answers silvana7413
100 hours is your answer
3000/75=40mph
4000/40=100 hours