Tuesday

October 21, 2014

October 21, 2014

Posted by **karon** on Thursday, March 29, 2012 at 1:07pm.

- algebra 2 -
**Reiny**, Thursday, March 29, 2012 at 4:14pmspeed of train B --- x mph

speed of train A --- x - 18 mph

for A: time to go 190 miles = 190/(x-18)

for B: time to go 280 miles = 280/x

but these two times are equal, so ....

190/(x-18) = 280/x

280x - 5040 = 190x

70x = 5040

x = 72

take it from there

**Answer this Question**

**Related Questions**

algebra - the speed of train A is 8 mph slower than the speed of train B. Train ...

math - the speed of train A is 14 mph slower than train B. Train A travels 190 ...

College Algebra 2 - The speed of train A is 16 mph slower than train B. Train A ...

Algebra - The speed of train A is 6 mph slower than the speed of train B. Train ...

algebra - The speed of train A is 6 mph slower than the speed of train B. Train ...

algebra - 1. The speed of a passenger trin is 18mph faster than the speed of a ...

algebra 1b - the speed of a passenger train is 18mph faster than the speed of a ...

Math - the speed of train A is 16 mph slower than the speed of train B. Train A...

math - the speed of a train a is 6 mph slower than the speed of train b. train a...

math - The speed of a train A is 8mph slower than the speed of train B. Train A ...