Brad sold candy bars and cookies for a fundraiser at school. Candy bars sold for $3 and cookies sold for $5. He sold a total of 20 items and made $76. How many candy bars did Brad sell?
Answer
14
18
16
12

Question

Brad sold candy bars and cookies for a fundraiser at school. Candy bars sold for $3 and cookies sold for $5. He sold a total of 20 items and made $76. How many candy bars did Brad sell?
Answer    
14 
   18 
   16 
   12

anonymous · Answer

12

anonymous · Answer

Let the candy bars be the variable b and the cookies c.
If you add the number of candy bars with the number of cookies then you have 20 in all, that is.
b + c = 20
Now we have to do a cost equation.  The cost of b number of candy bars is $3b and the cost for the number of cookies is $5c.  When you add those together you should get $76.
Here's the equation: 3b + 5c = 76
Now use either substitution or elimination to solve it!