Monday

December 22, 2014

December 22, 2014

Posted by **Chris** on Friday, November 16, 2012 at 10:39pm.

Charlie and Peter are driving around a racetrack. Charlie drives at an average speed of 108 miles per hour. Peter drives at an average speed of 99 miles per hour. Peter is given a head start of 12 miles. Charlie and Peter finish at the same time. How far does Charlie drive?

126,132,144 or 156 miles

- Math - 8th grade - Please help -
**Steve**, Saturday, November 17, 2012 at 12:31amPeter drives 12 miles less than Charlie.

they both drive the same time

so, if Charlie drives c miles,

and since time = distance/speed,

c/108 = (c-12)/99

99c = 108(c-12)

9c = 1296

c = 144 miles

**Answer this Question**

**Related Questions**

8th grade math - Ms. Sue please - Charlie and Peter are driving around a ...

math - Charlie and Peter are driving around a racetrack. Charlie drives at an ...

Literature - In "Gumption," why does Charlie Oyster's father challenge the WPA ...

math - Charlie and Alexandra are running around a circular track with radius 60 ...

Math - Alice, Bob, and Charlie are three siblings with ages a, b, and c ...

english - 27. What two things is F. Scott Fitzgerald comparing metaphorically by...

finacial - Charlie Company is expected to grow at an annual rate of 6% ...

Math algebra - 1) Charlie plans to sell twice as many magazine subscriptions as ...

Math - Charlie paid for his purchases with a $50.00 bill. He paid $2.34 sales ...

Math - Charlie is late for the hot-air balloon rally. He stops his car 65 meters...