Home > MC2 > Chapter Ch7 > Lesson 7.2.2 > Problem 7-77
7-77.
Pierre was walking toward school at a rate of two miles per hour. He started six miles from school. Dom left school and walked toward Pierre at a rate of four miles per hour. When and how far from school will the boys pass each other?
Drawing a picture may be helpful.
Try and write an expression to represent these actions.
Notice that Pierre and Dom must walk a combined total of
To find the amount of miles one person walks, you must multiply the rate by the time.
Let
Since the two must walk a total of
At 1 hour, how many miles will Pierre have walked?
How far will he be from school?
Solve.