Thursday

August 21, 2014

August 21, 2014

Posted by **joseph** on Tuesday, November 28, 2006 at 11:43am.

let x = distance run by jen.

x + 25 = distance run by mary.

time jen = d/r = x/7.5

time mary = d/r = (x+25)/8

Since they arrived at the finish line at the same time, then the times for the two are equal. Set them equal and solve for x, the distance run by jen which is the full distance of the track. Post your work if you get stuck and need further assistance. Check my thinking. Check my work carefully.

**Related Questions**

Algebra - Jan can run at 7.5 m/s and Mary at 8.0 m/s. On a race track Jan is ...

Algebra - Jan can run at 7.5 m/s. On a race track Jan is given a 25m head start...

math - The track coach plans to make 8 lanes each 1-meter wide on the running ...

Math - paul can type 60 words per minute and jen can type 80 words per minute. ...

Physics - A tortoise can run with a speed of 14.0 cm/s, and a hare can run ...

Physics - A tortoise can run with a speed of 0.13 m/s, and a hare can run 20 ...

physics - A tortoise can run with a speed of 0.12 m/s, and a hare can run 20 ...

Physics - A tortoise can run at a speed of 20 cm/s and a hare can run exactly 20...

physics - A tortoise can run with a speed of 11.5 cm/s, and a hare can run 21.4 ...

Physics - A tortoise can run with a speed of 10.1 cm/s, and a hare can run 19.4...