Posted by **Help please..** on Tuesday, September 18, 2012 at 8:21pm.

Tom needs carpet for his living room (11x 10 ft) and his bedroom room (20 x 16 ft). At $14.99 per square yard installed or $19.99 per square yard installed. How much would he save by choosing the cheaper carpet?

- Math -
**Reiny**, Tuesday, September 18, 2012 at 8:39pm
area = 11*10 + 16*20 or 430 square feet

There are 9 square feet in 1 square yard.

divide by 9, then multiply by each unit cost

subtract the two costs to find the savings.

- Math -
**Help please..**, Tuesday, September 18, 2012 at 9:01pm
430 /9= 47.777

47.78*19.99=955.12 less

47.78*14.99 =716.22

Answer $238.90 he would save ... Correct?

- Math -
**Reiny**, Tuesday, September 18, 2012 at 9:22pm
yes, arithmetically you are correct,

comment:

What do you think would happen if you went into a store and asked for 47.7777 square yards of carpet?

I wish text-book authors would think before they make up such unrealistic problems.

e.g. most likely you will have to buy a carpet which is 12 ft wide, and have waste.

For the other room you might even have to join different widths.

- Math -
**Help please..**, Tuesday, September 18, 2012 at 9:30pm
Haha ... Ok. Thanku soo much!

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