SOLUTION: Help I cant solve these equations word problems too: Smith bicycled 45 miles going east from Durango and jones bicycled 70 miles. jones averaged 5 milesper hour more that smit

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Help I cant solve these equations word problems too: Smith bicycled 45 miles going east from Durango and jones bicycled 70 miles. jones averaged 5 milesper hour more that smit      Log On


   

Question 48184: Help I cant solve these equations word problems too:
Smith bicycled 45 miles going east from Durango and jones bicycled 70 miles. jones averaged 5 milesper hour more that smith and his trip took one/half hour longer than smiths. how fast was each one traveling?
Answer by Paul(988) About Me  (Show Source):
You can put this solution on YOUR website!
Let jones speed be x+5
Let smith's speed be x
EQUATION:
45%2Fx-70%2F%28x%2B5%29=1%2F2
45%28x%2B5%29-70%28x%29=%28%28x%29%28x%2B5%29%29%2F2
SImplfy:
x%5E2%2B55x-450=0
can u solve from there ?
Paul.