math

a box of chalk and 2 staplers costs $10. 3 boxes of chalk and 2 staplers costs $18. find total cost of 1 box of chalk and 1 stapler

  1. 👍 0
  2. 👎 0
  3. 👁 80
asked by tim
  1. c + 2s = 10.30
    3c + 2s = 18
    subtract them
    2c = 7.7
    c = 3.85
    sub back into the first equation to get
    3.85 + 2s = 10.3
    2s = 6.45
    s = 3.23

    so c + s = 7.08

    1. 👍 0
    2. 👎 0
    posted by Reiny
  2. barmodel

    1. 👍 0
    2. 👎 0
    posted by anna

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    how would you show his problem as a bar model A box of chalk and 2 staplers cost $10.3 boxes of chalk and 2 staplers cost $18.Find the total cost of 1 box of chalk

    asked by anna on September 7, 2016
  2. math

    A box of chalk and 2 staplers cost $10 Three boxes of chalk and 2 staplers cost $18. Find the total cost of 1 box of chalk and 1 stapler?

    asked by Anonymous on October 27, 2014
  3. math

    A box of chalk and 2 staplers cost $10. Three boxes of chalk and 2 staplers cost $18. Find the total cost of 1 box of chalk and 1 stapler.

    asked by Tony on October 27, 2013
  4. Math

    A box of chalk and 2 staplers cost $10. Three boxes of chalk and 2 staplers cost$18. Find the cost of 1 box of chalk and 1 stapler.

    asked by Anonymous on October 9, 2014
  5. math

    A box of chalk and 2 staplers cost $10. Three boxes of chalk and 2 staplers cost $18.Find the cost of 1 box of chalk and 1 stapler.

    asked by ruben on September 27, 2012
  6. math

    box of chalk and 2 staplers cost $10.00. Three boxes of chalk and 2 staplers cost $18.00. How much is a box of chalk and a stapler?

    asked by hayden on October 5, 2010
  7. Math

    A box of chalk and 2 staples cost $10. Three box of chalk and 2 staplers cost $18. Find the total cost of 1 box of chalk and 1 stapler.

    asked by Anonymous on October 24, 2012
  8. math

    Chalk contains calcium,carbon and oxygen in the ratio 10:3:12.Find the percentage of carbon in a chalk and in a stick of chalk, carbon in 3g what is the length of chalk stick?

    asked by Ashish on October 3, 2016
  9. math

    chalk contains 3% of carbon,10%of calcium & 12%of oxygen.find the amount in grams of each of these substancein 1kg of chalk.

    asked by sonam on July 29, 2011
  10. Foreign languages

    Can't you have the structure "have someone do something" in American English? Thank you very much, Writeacher. I had her get a piece of chalk.Active She was asked (requested??) to get a piece of chalk. Passive (??)

    asked by Mike on June 19, 2012

More Similar Questions