a movie theater sells popcorn and fountain drinks. elisa buys 3 popcorn buckets and 1 fountain drink for his family ans pays a total of 10.50. cora buys 2 popcorn buckets and 4 fountain drinks for her family, and pays a total of 12.50. determine rhe price of a bucket of popcorn and a fountain drink​

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

answer are

step-by-step explanation: