Friday

April 18, 2014

April 18, 2014

Posted by **Marie** on Monday, August 29, 2011 at 5:10pm.

- math -
**Mgraph**, Monday, August 29, 2011 at 6:26pmLet the distance to school S, my speed=S/30

the speed of my brother=S/40 and

I catch up with him after t min.

Then

S/40*(t+8)=S/30*t

30t+240=40t

**Related Questions**

Math - Steve mcspoke left home on his bike traveling at 18km/hr. Steve's brother...

math - Steve McSpoke left home on his bicycle at 8am, traveling at 18km/h. At ...

Economics - An airline has a low marginal cost per passenger of $30 on a route ...

math - during a triathlon, Sharon swims 1/4 of the total route and cycles 3/5 of...

math - during a triathlon, Sharon swims 1/4 of the total route and cycles 3/5 of...

math - At the beginning at a walk, Alex and Beth are 2.2 miles apart. If they ...

Math - Mary walked to the park on Saturday and Sunday. On Saturday she took a ...

MATH - Rob can complete his bus route in 6 hours. Joan can complete her bus ...

physics - Person X travels from A to B and then back the same route at a ...

PreAlgebra - A circular pond 20 m in diameter is surrounded by a gravel path 5 m...