Question

Renee has a total of 12 cookies in chocolate chip and peanut butter, C + P = 12, and the number of chocolate chip cookies is three times the number of peanut butter cookies, C = 3P. How many of each type of cookie does she have?

a) 9 chocolate chip cookies and 3 peanut butter cookies
b) 6 chocolate chip cookies and 6 peanut butter cookies
c) 3 chocolate chip cookies and 9 peanut butter cookies
d) 4 chocolate chip cookies and 8 peanut butter cookies

Answer 1

Renee has 9 chocolate chip cookies and 3 peanut butter cookies.

Step-by-step explanation:

To solve this problem, we can set up a system of equations using the given information:

C + P = 12

C = 3P

Substituting the second equation into the first equation, we get:

3P + P = 12

4P = 12

P = 3

Substituting the value of P back into the second equation, we get:

C = 3(3) = 9

Therefore, Renee has 9 chocolate chip cookies and 3 peanut butter cookies.