A coin-operated washing machine uses 52 gallons of water per wash. A single wash costs $1.25. Last week, the machine collected $96.25. How many gallons of water did the machine use last week?

4004 gallons

Step-by-step explanation: divide the cost by the amount per cost then multiply by 52

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".

a .4y4

hope this !