Homework Help: Math

Posted by Zoe on Wednesday, January 9, 2013 at 1:51pm.

A cup of coffee costs 80c less than a burger.Together they cost 220c.
Use this information to form an equation and solve it.

This question I can't get my head around.
It's due in 2 days but I would like to get it done sooner.
Thanks.

Math - Ms. Sue, Wednesday, January 9, 2013 at 2:05pm
c + (c + 80) = 220

2c = 140

c = 70

Coffee costs 70 c

A burger costs 70 + 80 = 150 c

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