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? 12 14 16 18]

First option

12 candy bars were sold

Step-by-step explanation:

Call x the amount of candy sold and call z the amount of cookies sold. Then we know that

We also know that candy bars sell for $ 3 and cookies sell for $ 5. The profit was $ 76

So:

To find the quantity of candy bars sold we must solve the system of equations:

Multiply the first equation by -5 and add it to the second equation

               +

--------------------------------

depending on others is critical to survival. my source is apex!

step-by-step explanation: