Answer:
slope = 0
Step-by-step explanation:
Calculate the slope m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (1, - 3) and (x₂, y₂ ) = (- 1, - 3)
m = = = 0
For easier notation lets use: Nn=x and Nd=y
x+y=22
5x+10y=135
Multiply the first equation by 5 to get
5x+5y=110
Now you can eliminate x by subtracting the first equation from the second
5x+10y-5x-5y=135-110
5y=25
y=5
x=17
Answer:
625 blocks
Step-by-step explanation:
We assume the number of blocks required is proportional to the length of the wall, so we have ...
blocks/(200 ft) = 250/(80 ft)
Multiplying by 200 ft gives ...
blocks = (200/80)·250 = 625
A 200 ft wall will require 625 blocks.
Answer:l
Step-by-step explanation:L