Posted by **Joel** on Sunday, August 14, 2011 at 9:04am.

Mr Zubir bouught a pair of pants, a shirt and a coat. The pair of pants and shirt costs $100.90. The pants and coat costs $244.50. The coat costs 5 times as much as the shirt. How much did Mr Zubir pay for his coat?

- Maths -
**Anonymous**, Sunday, August 14, 2011 at 9:21am
pp+s=100.90

pp+c=244.50

c=5s

We solve this system

From the 1st s=100.90-pp, from the 2nd pp=244.50-c => s=100.90-244.50+c=c-143.60

c=5s=5(c-143.60)=5c-718

4c=718

- Maths -
**Joel**, Sunday, August 14, 2011 at 11:48am
That was not the answer the teacher gave. It was $179.50 for the coat. How do I get this answer?

- Maths -
**Anonymous**, Sunday, August 14, 2011 at 11:55am
Divide last equation by 4 c=718/4=179.5

- Maths -
**Joel**, Sunday, August 14, 2011 at 12:09pm
ok, thanks. I get it now.

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