Question

The band is having a fundraiser. They sold a total of 300 hotdogs and hamburgers. Hotdogs sold for $2 and hamburgers sold for $3. They made a total of $780. How many hamburgers did they sell?

Answer 1

180 hamburgers

Explanation:

This is a system of equations :)

Let's assume

x=# of hotdogs

y=# of hamburgers

x+y=300

2x+3y=780

2(x+y)=2*300

2x+3y=780

2x+2y=600

2x+3y=780

(2x+3y)-(2x+2y)=780-600

y=180 hamburgers

Hope this helps :D