GED Practice test 10

Four less than the product of a number (X) and 5 is equal to 8 more than 2 added to 3 times the number. Which of these equations could be used to find the value of X?

• 4-5X = 8+2+3X

• 5X - 4 = 8 +2 +3X

• 5X = 4 - 8 +2 +3X

• 5X - 4 = 8 +2 +3

What is the slope of a line that passes through the points of (2,4) and (4,6)?

• -2

• 1

• 2

• 4

What is the Y-intercept of the line with a slope of 2 that passes through the point (1,2)?

• -2

• -1/2

• 0

• 1/2

A baseball pitcher's earned run average (E) is a function of the number of earned runs (R) given up and innings pitched (I). The function is written $E\ =\ \frac{9R}{I}$   What is the earned run average of a pitcher who gives up 8 runs in 18 innings? 

• 2

• 4

• 6

• 8

What is the surface area, in square centimeters, of a cube with each edge length of 5 cm?

• 15

• 25

• 125

• 150

What is the surface area, in square centimeters, of a cylinder with a height of 10 cm and a radius of 6 cm?

• $136\pi$

• $160\pi$

• $192\pi$

• $256\pi$

What is the surface area, in square centimeters, of a cylinder that measures 8 cm tall with a diameter of 6 cm on its base?

• $48\pi$

• $57\pi$

• $66\pi$

• $132\pi$

What is the surface area of a pyramid with a slant height of 5 feet, a base with a perimeter of 14 feet, and a base with an area of 12 feet?

• 40 ft²

• 42ft²

• 47 ft²

• 49 ft²

A toy factory paints all of its rubber balls with 2 coats of latex for durability. How many square centimeters of latex are needed to cover a rubber ball with a circumference of $16\pi$   cm? 

•  $64\pi$  

•  $128\pi$  

•  $256\pi$  

•  $512\pi$  

The floor of a walk-in closet measures 7 feet by 4 feet. If the ceiling heights is 8 feet, what is the volume in cubic feet of the closet?

• 28

• 56

• 112

• 224