Answer:
x = 4.75 or 19/4 or 4 and 3/4
Step-by-step explanation:
10 - 4x = -9
-10 -10
-4x = -19
---- -----
-4 -4
x = 4.75 or 19/4 or 4 and 3/4
Answer:
D
Step-by-step explanation:
Calculating the volumes of both solids
Volume of a cube = s³ ( where s is the side length )
here s = 10, hence
V = 10³ = 10 × 10 × 10 = 1000 in³
Volume of a cylinder = area of base × height
Area of circular base = πr²
here r = 10 and h = 12, hence
V = π × 10² × 12 = 1200π ≈ 3769 .9 in³
The volume of the cylinder is greater than the volume of the cube → D
For this case we must resolve the following inequality:

Subtracting 7 from both sides of the inequality we have:

Dividing by 3 to both sides of the inequality we have:

We multiply by -1 on both sides, taking into account that the sense of inequality changes:

Thus, it is observed that to solve the inequality it is necessary to change the meaning of it.
ANswer:
False. It is necessary to change the sense of inequality
Estimate: 331,000
sum: 331,200