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September 21, 2014

September 21, 2014

Posted by **Charlotte** on Monday, August 13, 2012 at 2:53pm.

Then, he traveled by motorcycle at an average speed of 53 miles per hour.

In total, he traveled 333 miles for 9 hours.

How many minutes did Ben travel by motorcycle? (Round to the nearest minute.)

- Algebra -
**Steve**, Monday, August 13, 2012 at 3:34pmif he traveled x miles at 29 m/h and y miles at 53 m/h, then

x+y=333 and, since time = distance/speed,

x/29 + y/53 = 9

so,

x/29 + (333-x)/53 = 9

x = 174

y = 159

check:

174+159 = 333

174/29 + 159/53 = 6+3 = 9

- Algebra -
**Sonja**, Tuesday, October 30, 2012 at 4:05pmbut how to calculate this part with x/29+(333-x)/53=9

?

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