Question

Martha is running her first marathon she can run at a rate of 340 feet/min. 10 minutes later her mom starts the same course running a rate of 680 ft./min. how long till mom catches up with Martha

Answer 1

Explanation:

let they meet after t minutes.

340(x+10)=680x

340x+3400=680x

680x-340x=3400

340x=3400

x=3400/340=10

so mom meet Martha after 10 minutes she starts running.