WORD PROBLEMS
Algebra
1325 - x = Distance Traveled by Plane (in miles)
and, using Equation 2-14,
= Time Traveled by Car (in hours)
x
50
= Time Traveled by Plane (in hours)
1325
x
500
Step 3.
Total Time = (Time Traveled by Car) + (Time Traveled by Plane)
4 hours
x
50
hours
1325
x
500
hours
Step 4.
Solving for x:
4
x
50
1325
x
500
4
10x
1325
x
500
(500)4
9x
1325
500
(500)
2000 = 9x + 1325
2000 - 1325 = 9x
685 = 9x
9x
9
675
9
x = 75 miles
Solving for the other unknowns:
MA-02
Page 58
Rev. 0
