Question

Your class goes to an amusement park. admission is $10 for each student and $15 for each chaperone. the total cost is $380. there are 12 girls in your class and 6 chaperones on the trip. how many boys are in your class?

Answer 1

You would multiply the students by the price (12*10=120) then multiply chaperones by price (6*15=90) then add both prices together to get 210. Then you would subtract 210 from 380 to get how many boys are in the class. 380-210=170. Since each student cost 10 so you would divide 170/10=17. There would be 17 boys in your class.