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Fifth grade
> DD.15 Volume of cubes and rectangular prisms TFL
The volume of a cube is 27 cubic yards. What is the length of each side of the cube?
side =
yards
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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: he is 272195

step-by-step explanation: all you have to do is multiple 3535 and 77 and it equals 272195

in my opinion , its hazel