davcolby davcolby

17-11-2014
Mathematics

Answered

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

Answer :

17-11-2014

[tex] \left \{ {{x+2y=10\ |\cdot-1} \atop {3x+2y=18}} \right. \\\\ \left \{ {{-x-2y=-10} \atop {3x+2y=18}} \right. \\+-----\\\\2x=8\ \ \ \ |:2\\x=4\\\\4+2y=10\\2y=10-4\\2y=6\ \ \ |:2\\y=3\\\\1\ boc\ of\ chalk\ cost\ \$4\ and\ 1\ boc\ of\ stapler\ cost\ \$3[/tex]

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thopkins0620 thopkins0620

17-11-2014

no way will this math work..... if there is a way i would like to see it worked myself lol

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