Thursday

March 26, 2015

March 26, 2015

Posted by **Al** on Monday, April 30, 2012 at 7:16am.

a) Find the distance of the race.

b) What was Remy's speed?

- math -
**Henry**, Wednesday, May 2, 2012 at 8:51amREMY

Speed = X m/min.

d = X * 45 m.

JON

Speed = (X-50) m/min.

2d/3 = (x-50)*45.

Multiply both sides by 3/2:

d = 67.5(X-50).

Substitute 45x for d:

45x = 67.5x - 3375.

45x - 67.5x = -3375.

-22.5x = - 3375.

b. X = -3375 / -22.5 = 150 m/min = 150m/60s = 2.5 m/s = Remy's speed.

a. d = 45x = 45min * 150m/min = 6750 m.

- math -
**Anonymous**, Wednesday, May 2, 2012 at 10:15amThank you.

**Answer this Question**

**Related Questions**

7th grade math - After 1 hour,Jon had finished 5/9 of a long-distance race, and ...

Math - Ted and Ben took part in the same race. When Ted finnished the race in 25...

physics help please! - A race car is one lap behind the lead race car when the ...

math - The students in Mr. Stevens class are having a turtle race. The race will...

math - The students in Mr. Stevens class are having a turtle race. The race will...

algebra1 - a cyclist completes a 150-mile race in a certain amount of time.she ...

Physics - A competitor is aiming to complete a 1500m wheel-chair race in less ...

ENGLISH - In which sentence is race used as a noun? A. Tom will race with four ...

Algebra - 1. The sum of the ages of James and Remy 5 years ago was 44. Twenty-...

math - What would be the answer to85x205=960x3256 85 x 205 = 17425 960 x 3256 = ...