Mr. Milano is building a brick wall around his patio. He purchased and laid 1,225 bricks the first weekend. The second weekend, he purchased an additional 1,444 bricks to complete the wall.
When he finished, Mr. Milano had 378 bricks left over. How many bricks in all did Mr. Milano use in the wall?
Use the numbers below to complete the bar diagram to show how to find b, the number of bricks used.
Numbers may be used once, more than once, or not at all.

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

tap for more

m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0