Question 246279: 2 joggers start at the same point at the same time and jog in opposite directions. Joanna jogs at 5 1/2mph and Barbara jogs at 4 3/4mph How far apart will they be in 1 1/4 hours?
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! Add their rates of jogging together since they are jogging in opposite directions, and multiply by the time:
(5 1/2 + 4 3/4)*(1 1/4)
Now, there are three ways to do this! First, use a calculator!! Unfortunately, I'm on a weekend away from home, and I didn't bring my calculator!
Second, you can convert everything to decimals and calculate.
Third, you can convert to improper fractions, which is the way we do most mathematics.
Get a common denominator:
You can calculate that one if you want to, but since I don't have my calculator, that will be my final answer.
Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
|
|
|
