Friday

July 25, 2014

July 25, 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]

**Related Questions**

algebra - the cost of three markers and two pencils is 1.80 the cost of four ...

Math - How do you solve this question: The cost of 3 markers and 2 pencils is $1...

algebra - Rachael bought 12 pencils and 7 markers for $5.36, and later bought 8 ...

math, help - how do i write the equations so i can solve it i will do the ...

algebra - 3 pencils cost $.03 more than 2 pen,and 1 pen and 10 pencils together ...

math - a pencil, eraser and notebook together cost one dollar. a notebook costs ...

math - A pencil, eraser, and notebook cost $1 in total. A notebook costs more ...

Math - In a store, pencils have one price and pens have another. 3 Pencils and 2...

Algebra 1 - 4 pencils and 5 pens cost $2.00; 3 pencils and 4 pens cost $1.58. ...

math - 1) Can someone tell me how the write 4x^3 + y^2 - 4y + 36=0 in standard ...