SOLUTION: Hi my name is Ali I need help with this problem Dave bought 9 packets of cookies for $15.90. Each packet of cookies contains 10 cookies. Find the cost of each cookie. Help

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Hi my name is Ali I need help with this problem Dave bought 9 packets of cookies for $15.90. Each packet of cookies contains 10 cookies. Find the cost of each cookie. Help      Log On


   

Question 1033043: Hi my name is Ali
I need help with this problem
Dave bought 9 packets of cookies for $15.90. Each packet of cookies contains 10 cookies. Find the cost of each cookie.
Help me please
Thank you so much
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
You need to find the cost of 1 cookie
There are +10+ cookies in each packet
So, there are +9%2A10+=+90+ cookies in
+9+ packets
------------------
Now you can find:
[ total cost ] / [ total number of cookies ]
+15.9+%2F+90+=+.177+
The cost of each cookie is 17.7 cents
Hope this helps