Problema Solution
Ray and Sue leave the baseball stadium at the same and head in the same direction. After 6 Hours, Sue is 42 miles ahead of Ray. Sue's speed is 1 more than 2 times Ray's speed. Find the speeds of Ray and Sue
Answer provided by our tutors
let
r = the speed of Ray
s = the speed of Sue
t = 6 hr
Sue's speed is 1 more than 2 times Ray's speed:
s = 1 + 2r
after 6 Hours, Sue is 42 miles ahead of Ray:
6s = 6r + 42 divide both sides by 6
s = r + 7
by solving the system of equations:
s = 1 + 2r
s = r + 7
we find:
s = 13 mph
r = 6 mph
click here to see the step by step solution of the system of equations:
Ray's speed is 6 mph.
Sue's speed is 13 mph.