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December 22, 2014

December 22, 2014

Posted by **Anonymous** on Wednesday, June 16, 2010 at 4:08pm.

- algebra -
**Alvin C.**, Wednesday, June 16, 2010 at 5:29pmThe cost of 3 markers and 2 pencils is $1.80, which is $.36 cent each, and The cost of 4 markers and 6 pencils is $2.90 which is $.29 cent each.

- algebra -
**Maggie**, Wednesday, June 16, 2010 at 5:58pm3m+2p=1.8 (qeuation A)

4m+6p=2.9 (equation B)

"equation A" times "3":

9m+6p=5.4 (equation A')

"equation A'" - "equation B":

5m=2.5

[m=0.5]

substitude "m=0.5" into "equation A":

3(0.5)+2p=1.8

1.5+2p=1.8

2p=0.3

[p=0.15]

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