Two bicyclists begin at the same point and travel in the opposite directions. One bicyclist rides at the rate of 20kms. per hour; the other rides at rate of 10kms. per
hour.
In how many hours will they be 120kms. apart?
Use Simultaneous equations

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.

You are living in aldine, tx and you are planning a trip to six flags in arlington, tx. you look on a map that has a scale of 0.5 inches to 30 miles. if the map shows the scale distance from aldine to arlington is 4 inches, how far is the actual distance?

Which is the standard form for this number? (2 x 10) + (5 x 1) + (8 x 1 10,000 )