Saturday

September 20, 2014

September 20, 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.

**Answer this Question**

**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 ...

Brief calculus - The marginal cost of producing the xth box of CDs is given by 9...

Math - A confectioner perchased several boxes of candy for $6. He gave five ...

Applied Calc 2 - he marginal cost function for a manufacturing company is given ...

Applied Calc 2 - the marginal cost function for a manufacturing company is given...

Foreign languages - Can't you have the structure "have someone do something" in ...

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