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December 21, 2014

December 21, 2014

Posted by **Dj** on Friday, March 14, 2008 at 3:43pm.

Can someone please help me with this problem?

- pre-algebra -
**Ms. Sue**, Friday, March 14, 2008 at 3:52pmShe shopped for 3 1/2 hours.

If you write the equation and explain it, we'll be glad to check it.

- pre-algebra -
**drwls**, Friday, March 14, 2008 at 3:58pmSince he paid more than $1, he must have parked more than one hour. Let T be the number of hours parked. T-1 is the number of hours parked at the lower rate.

Your equation is:

4.75 = 1.0 + 0.75*2*(T-1)

which can be rewritten as

4.75 = 1 + 1.5 (T-1)

The "2" gets multiplied in because they charge by the half hour after one hour.

Solve that equation for T.

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