Problema Solution
The running time for MOVIE a IS 36 minutes more than twice the running time for movie b. If the running time for movie a is subtracted from tripple the running time for movie b, the result is 52 minutes. Find the running times for each movie
Answer provided by our tutors
Let
a = the running time movie a
b = the running time of movie b
The running time for MOVIE a IS 36 minutes more than twice the running time for movie b:
a = 36 + 2b
If the running time for movie a is subtracted from tripple the running time for movie b, the result is 52 minutes:
3b - a = 52
We have the following system of equations:
a = 36 + 2b
3b - a = 52
........
........
a = 212 min
b = 88 min
The running time of movie a is 212 min while the running time of movie b is 88 min.