SOLUTION: Cookies inc. sells peanut butter cookies for $6.50 per dozen and chocolate chip cookies for $9.00 per dozen. Yesterday, they sold 85 dozen more peanut butter cookies than chocolate
Algebra ->
Customizable Word Problem Solvers
-> Finance
-> SOLUTION: Cookies inc. sells peanut butter cookies for $6.50 per dozen and chocolate chip cookies for $9.00 per dozen. Yesterday, they sold 85 dozen more peanut butter cookies than chocolate
Log On
Question 661942: Cookies inc. sells peanut butter cookies for $6.50 per dozen and chocolate chip cookies for $9.00 per dozen. Yesterday, they sold 85 dozen more peanut butter cookies than chocolate chip cookies. The total sales for both types of cookies were $4055.50. Let 'p' represent the number of dozens of peanut butter cookies sold. I'm confused about how to set up the equation. Answer by ReadingBoosters(3246) (Show Source):
You can put this solution on YOUR website! p = pb cookies dozen
y = ch cookies dozen
p = y + 85
6.5p + 9y = 4055.5
Substitute p
6.5(y+85) + 9y = 4055.5
Distribute and solve for y
6.5y + 552.5 + 9y = 4055.5
15.5y = 4055.5 - 552.5
15.5y = 3503
y = 226
p = 226 + 85 = 311 dozen pb cookies
(