Plot of land between two roads are laid out according to the boundaries shown. the boundaries between the two roads are parallel. what is the length of plot 3 along cheshire road?

in plot one its 40 yards on cheshire road on shelby road its 48. on plot 3 on shelby road its 56 yards but on cheshire there is nothing.

a. 46 2/3 yards
b. 64 1/5 yards
c. 66 yards
d. 37 1/3 yards

the answer is a. i just finished it.

Given: 
                Cheshire Road           Shelby Road
Plot 1           40 yards                       48 yards
Plot 3                x                                56 yards

To solve for x, we get the ratio and proportion of both plots.

40/48 = x/56

Do cross multiplication.

40 * 56 = 48 * x
2,240 = 48x
2,240/48 = 48x/48
46.67 = x

Plot 3 of Chesire Road measures 46.67 or 46 2/3 yards.  Choice A. 

The answer is y = 2x - 3.

Step-by-step explanation:

Move 2x to the right side of the equation by adding it to both sides:

-2x + y + 3 = 0

+ 2x             + 2x

y + 3 = 2x

Then, move 3 to the right side of the equation by subtracting it form both sides:

y + 3 = 2x

  - 3    - 3

y = 2x - 3