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.
He volume of the right rectangular prism is 120
Answer:
36
Step-by-step explanation:
90÷5=18
18×2=36
We multiply two because the ration for adults is 2
Answer: I’m pretty sure the second one (b)
Step-by-step explanation:
2 x 1/4 is the same as 1/4 + 1/4
