Tuesday

July 22, 2014

July 22, 2014

Posted by **Tony** on Sunday, October 27, 2013 at 5:53pm.

- math -
**Kuai**, Sunday, October 27, 2013 at 6:13pmstaples = s

chalk = c

c + 2s = 10

3c + 2s = 18

-c-2s = -10

3c + 2s = 18

2c = 8

c = 4

s = 3

c + s

4 + 3 = 7

The total cost $7.

**Related Questions**

math - A box of chalk and 2 staplers cost $10. Three boxes of chalk and 2 ...

math - box of chalk and 2 staplers cost $10.00. Three boxes of chalk and 2 ...

Math - A box of chalk and 2 staples cost $10. Three box of chalk and 2 staplers ...

math - chalk contains 3% of carbon,10%of calcium & 12%of oxygen.find the amount ...

math - A box with a rectangular base and rectangular sides is to be open at the ...

Calculus - dimensions of a box? - A rectangular box with a square bottom and a ...

math - A rectangular box with a volume of 320 cubic units is to be constructed ...

Math-Geometry - The material for the base of a box will cost three times as much...

Math-Optimization - The material for the base of a box will cost three times as ...

calculus - A box of volume 72m^3 with square bottom and no top constructed out ...