Answer:
A. In 1991, there were 5.74 billion people
D. The carrying capacity of Earth is 64 billion people
Have a nice day! :)
Answer:
13
Step-by-step explanation:
Substitute the variables given
w=7 &x=2
3(7)-4(2)
21-8
=13
Answer:
90
Step-by-step explanation:
First, we should find the area of the trapezoid, and then subtract the area of the removed triangle in order to find the shaded area.
Area of the trapezoid
1) Area of the rectangle in the middle.
Base Length: 10
Height Length: 10
Area: 10 x 10 = 100
2. Area of the triangles on the side
Base Length: (14 - 10)/2 = 2
Height Length: 10
Area: 2 x 10 x 1/2 = 10
There are two triangles: 10 x 2 = 20
Area of the trapazoid: 100 + 20 = 120
Area of the triangle that's been removed
Base Length: 10
Height Length: 10 - 4 = 6
Area: 10 x 6 x 1/2 = 30
Shaded area
Area of the trapezoid - Area of the triangle
120 - 30 = 90
Area of the shaded region is 90.
Combine like terms.
2x+20=3x-5
20=3x-5-2x
20+5=3x-2x
25=x
