Thursday

December 18, 2014

December 18, 2014

Posted by **dawn** on Monday, March 21, 2011 at 11:02pm.

i was told this question is not complete to answer? is that true?

- math...? -
**Reiny**, Tuesday, March 22, 2011 at 7:55amnormal speed ---- x km/h

time at normal speed = 240/x hours

reduced speed --- x-20 km/h

time at reduced speed = 240/(x-20)

solve:

240/(x-20) - 240/x =1

hint: multiply each term by x(x-2)

**Answer this Question**

**Related Questions**

math - to save fuel on the 240 km trip to the cottage, the Nakamura family ...

Math - A motorist makes a journey of 240 km from Singapore to Malacca to visit ...

MATH - Hello! I am trying to finish a math assignment. it was a bunch of math ...

MATH - Hello! I am trying to finish a math assignment. it was a bunch of math ...

Pre Calc - A bus trip of 90 miles would have taken an hour less if the usual ...

math - a car travels at a constants speed and uses G(x) litres of gas per ...

math - a truck driver traveled at an average speed of 48 miles per hour on a 100...

math - A family drove 1080 miles to their vacation lodge. Because of increased ...

College Algebra - A truck driver traveled at an average speed of 55 miles per ...

math - andys average driving speed for a 4-hour trip was 45 miles per hour. ...