Anna

posted by .

At 9:00 Mary Thorne set out from her house for a picnic, traveling at 15 km/h on her bike. her sister lifet 15 min later and traveled at the speed of 30 km/h. If both her sisters arrived at the picnic area at the same time, how far did each travel?

How would I set this problem up?

• Anna -

didn't they both travel the same distance?
let that distance be x km

so mary's time = x/15
sister's time = x/30

The difference is their times is equal to 1/4 hour.

Translate that into an equation and solve for x

Similar Questions

1. Math: distance,rate,time

Jamila left home on her bike at 11:00 AM traveling at 12 km/h. At noon, her sister Tamantha set out after her following the same route. If Tamantha's motorcycle traveled 28km/h, what time did Tamantha overtake Jamila?
2. English

i need the script below edited please. Scene: Jacob and Mary are at Jerome’s House, to return the engagement ring. The house shows age, broken windows on both sides of the house and a large porch. Jacob: All right Mary, were here. …
3. English

i need this script proofread and edited please Scene: Jacob and Mary are at Jerome’s House, to return the engagement ring. The house shows age, broken windows on both sides of the house and a large porch. Jacob: All right Mary, were …
4. algebra

The question is: You plan on attending a picnic for the up coming holiday. You can either go to your sister's picnic who lives 10 miles west of your house or to your friends picnic who lives 10 miles east of your house. write an absolute …
5. PHYSCÝS

You ride your bike along a straight line from your house to a store 1030 m away. On your way back, you stop at a friend's house which is halfway between your house and the store. a) What is your displacement?
6. Math

Steve mcspoke left home on his bike traveling at 18km/hr. Steve's brother set out 2 hours later , following the same route, TRAVELING 54 per hour. How long did brother have to travel to catch up with Steve?
7. BRAINMATH

BobPursley has 3 more brothers than sisters, how many more brothers than sisters does his sister mary have?
8. Math

Kelly and Sally both set off at 8 :30 am for Town P, 180 km away. Sally arrived at 100:30 am, ahead of Kelly. If Kelly traveled at a speed which was 10 km/h slower than Sally, the Kelly would have arrived in Town P at ________ PM.
9. physics

You set your stationary bike on a high 80 N friction like resistive force and cycle for 30 min at speed of 8 m/s. Your body is 10% efficient at converting chemical energy in your body into mechanical work. What is your internal chemical …