Use substitution to solve the system of equations.

y = 2x + 16
2x – 7y = –64

A) (–4, 8)

B) (–1, 11)

C) (8, –4)

D) (–7, –11)

A)  (–4, 8)

Step-by-step explanation:

to solve this system of equation

we will say let

y = 2x + 16 equation 1

2x – 7y = –64 equation 2

substitute equation 1 into equation 2

2x – 7y = –64 equation 2

2x - 7( 2x + 16) = -64

2x - 14x -112 = -64

combine the like terms

2x - 14x = -64 +112

-12x = 48

divide both sides by the coefficient of x

-12x/-12 = 48/-12

x = -4

put the value of x = -4 into equation 1

y = 2x + 16 equation 1

y = 2(-4) + 16

y = -8 + 16

y = 8

therefore the value of x and y is -4 and 8 respectively

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

pls refer ro the top for answer