SOLUTION: chocolate chip cookies sell for 50 cents and oatmeal cookies sell for 35 cents. on monday the bakery sold 20 cookies and made 8.80. how many chocolate chip cookies were sold?

Question 335539: chocolate chip cookies sell for 50 cents and oatmeal cookies sell for 35 cents. on monday the bakery sold 20 cookies and made 8.80. how many chocolate chip cookies were sold?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let C be the number of chocolate chip cookies, T the number of oatmeal cookies.
1.
2.
From eq. 1,

Substitute into eq. 2,

Then from eq. 1,

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