Rose has a rectangular patio that is 5 tiles long and 8 tiles wide. She is changing the dimensions to 10 tiles long by 10 tiles wide. Draw a picture to determine how many new tiles Rose will add to her patio.

d 60

Step-by-step explanation:

Rose's patio originally had 5 x 8 = 40 tiles (drawn in blue)

since she wants to put more tiles and form a 10 x 10 square, she will need to add: (10 x 10) - 40 = 100 - 40 = 60 tiles (white tiles)

Area= L*W (we are changing the area)

5*8=40 (the area of the old)

10*10= 100 (area of new)

100-40 = 60 (number of tiles to get to new from old)

Hope this helps

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".

you have orange juice on wednesday. (idk why this is the answer)

step-by-step explanation: