SOLUTION: 11. Colin and Angela are eating chocolate chip cookies. Together they at a total of 25 cookies. Colin ate 2 less than twice as many cookies as Angela. Answer all parts. A

Algebra ->  Expressions-with-variables -> SOLUTION: 11. Colin and Angela are eating chocolate chip cookies. Together they at a total of 25 cookies. Colin ate 2 less than twice as many cookies as Angela. Answer all parts. A      Log On


   



Question 879485: 11. Colin and Angela are eating chocolate chip cookies. Together they at a total of 25 cookies. Colin ate 2 less than twice as many cookies as Angela.
Answer all parts.
A. Choose your variables for the equations.
B. Write a system of equations (2 equations) to represent the problem.
C. Use the substitution method to solve the system of equations. Show your work!
D. How many cookies did Colin eat?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Colin x
Angela y
question States
x + y = 25
x = 2y-2
(2y-2) + y = 25
3y = 27
y = 9, how many Angela ate. Colin ate 16 2%2A9-2
and...
9 + 16 = 25