Each problem has one error. Find the error
and describe the incorrect step on the answer
sheet in the appropriate spot. Then solve the
problem.
x - y = 0
5x + 2y = 7
x = y
5x + 2y = 7
5y + 2y = 7
7y = 7
y = 1
x + 1 = 0
X = -1
Solution: (-1,1)
Describe the error in the field below.

721.64 mi^2

Step-by-step explanation:

Area of the large rectangle A2 is

A2 = (32.7 mi)(26.3 mi) = 860.01 mi^2

Area of the small rectangle A1 is

A1 = (10.1 mi)(13.7 mi) = 138.37 mi^2

Therefore, the area of the shaded region is simply the difference between A2 and A1:

Area (shaded) = A2 - A1

= 860.01 mi^2 - 138.37 mi^2

= 721.64 mi^2