Answer:
x =4
Step-by-step explanation:
2/3(x-7)= -2
Multiply each side by 3/2 to clear the fractions
3/2 * 2/3(x-7)= -2 *3/2
x-7 = -3
Add 7 to each side
x-7+7 = -3+7
x =4
Answer:
x=4
Step-by-step explanation:
-2(x+2)=-12
x+2=-12/-2
x+2=6
x=6-2
x=4
Step-by-step explanation:
(-8-9)+23
-17+23
6.........
Volume sphere A V1 = (4/3)πR³
R=∛((3/4)V1/π)
Volume sphere B V2= (4/3)πr³
r=∛((3/4)V2/π)
R-r = ∛((3/4)40/π) - ∛((3/4)10/π) ≈ 0.8 inch
Answer C. 0.8 inch.
To solve this problem you must apply the proccedure shown below:
1. You have that the total area is obtained by applying the formula for calculate the area of a rectangle and multiply it by the four walls:

2. You know that each gallon of paint covers 100 ft², therefore, you can calculate the amount of gallons needed (which you can call
), if you divide the total area of the walls by the area covered by each gallon:

The answer is: 12 gallons.