Ari decides to run 8.5 kilometers this weekend. he jogs 8.9 laps around the running track on saturday. how many more

kilometers does he need to jog on sunday?

venue

pool

running track

kilometers

0.05

0.4

which equation shows the first step in solving this problem?

y=8.9x0.4

y = 8.5 x 0.4

y = 8.5-0.4

y = 8.9.0.4

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".

this shows a reflection over the x-axis and is translated one unit down and 6 units to the right (x + 6, y - 1)

hope this !

~just a girl in love with shawn mendes