SOLUTION: Tasty Bakery sells three kinds of muffins: chocolate chip muffins at 30 cents each, oatmeal muffins at 35 cents each, and cranberry muffins at 40 cents each. Charles buys some of e

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Tasty Bakery sells three kinds of muffins: chocolate chip muffins at 30 cents each, oatmeal muffins at 35 cents each, and cranberry muffins at 40 cents each. Charles buys some of e      Log On


   



Question 471617: Tasty Bakery sells three kinds of muffins: chocolate chip muffins at 30 cents each, oatmeal muffins at 35 cents each, and cranberry muffins at 40 cents each. Charles buys some of each kind and chooses twice as many cranberry muffins as chocolate chip muffins. If he spends $4.65 on 13 muffins, how many oatmeal muffins did he buy?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
cc+t+cr=13
30cc+35t+40cr=465
cr=2cc
cc+t+2cc=13
3cc+t=13
30cc+35t+80cc=465
110cc+35t=465
105cc+35t=455
5cc=10
cc=2
cr=4
t=7
Charles bought 2 chocolate chip muffins, 4 cranberry, and 7 oatmeal..