Search 72,285 tutors FIND TUTORS
Search for tutors
Ask a question
0 0

How far does Mackenzie live from work?

Tutors, please sign in to answer this question.

1 Answer

What we know:
The difference in time between driving 50mph vs 60mph is 6 minutes (1minute late vs 5minutes early)
 
Equations:
t1(x)=(60minutes/50miles)*x
t2(x)=(1min/1mile)*x
 
t1(x)-t2(x)=6
 
Solve:
(6/5)x-x=6
(6/5)x-(5/5)x=6
(1/5)x=6
x=30miles
 
Check:
30miles * (60minutes/50miles) = 36minutes
30miles * (1minute/1 mile) = 30 minutes