Question

Online school sucks and i hate these types of problems

Answer 1

The value of x is 40 units

Explanation:

It is given that the formula of area of rectangle is, A=length×width. Then, just substitute the following values into the formula:

length = 8

width = (1/2)x + 5

area = 200 units²

A = l × w

200 = 8(1/2)x + 8(5)

200 = 4x + 40

Next is to make x the subject by substracting 40 on both side :

200 - 40 = 4x + 40 - 40

4x = 200 - 40

4x = 160

x = 40 units

Answer 2

x=40

Explanation:

1) area of a rectangle formula L*W=A

l=length(1/2x+5)

w=width(8)

a=area(200)

lets substitute these values into the formula

(1/2x+5)(8)=200

1/2x*8=4x

5*8=40

4x+40=200

subtract both sides with 40

4x=160

x=40

Hope this helps!