Which ordered pair is a solution to the equation 2x - 4y = 18? a. (-1, 4) b. (0, 4) c. (9, 2) d. (11, 1)

D (11, 1)

Step-by-step explanation:

How you figure this out is you take the points and plug them into the solution.

So you have 2x-4y=18. The first number in the parenthesis is the x and the second number is y.

So if you plug in the numbers of letter D into the equation it is 2(11)-4(1)=18.

Then solve: 22-4=18.

18=18. D is your answer.

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".

mk./km: lm

step-by-step explanation:

,mlmlm

; mk

lk