SOLUTION: 5. Danny and his sister Elise are 24 miles apart. They start biking toward each other. Danny rides at a rate of 8 miles per hour, and Elise rides at a rate of 12 miles per hour.
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: 5. Danny and his sister Elise are 24 miles apart. They start biking toward each other. Danny rides at a rate of 8 miles per hour, and Elise rides at a rate of 12 miles per hour.
Log On
Question 208511: 5. Danny and his sister Elise are 24 miles apart. They start biking toward each other. Danny rides at a rate of 8 miles per hour, and Elise rides at a rate of 12 miles per hour. How long will it be before they meet? How far will they have traveled?
You can put this solution on YOUR website! Danny and his sister Elise are 24 miles apart. They start biking toward each other. Danny rides at a rate of 8 miles per hour, and Elise rides at a rate of 12 miles per hour. How long will it be before they meet? How far will they have traveled?
-------------
Going in opposite directions their speeds are added, so they're approaching at 20 mph.
24 miles are 20 mph --> 24/20 = 1.2 hours.
When they meet, they'll have traveled the 24 miles.
