Answer:
3x = 6
Step-by-step explanation:
3x are on the left
6 are on the right
3x = 6 since the scale is balanced
You can estimate that 5x4257 is 20,000
to check 5x4257=21,375 which is close to 20,000
Answer: b
Step-by-step explanation:
Answer:
208 ft^3
Step-by-step explanation:
Let the plane through the 4 ft X 4ft square at the top of the figure break the figure into 2 boxes, one has dimensions (8-7) by 3 by 4 = 1ft X 3ft X 4ft, and the other has dimensions 7 by 7 by 4 = 7ft X 7ft X 4ft.
They have volumes of (1)(3)(4) = 12 ft^3, and (7)(7)(4) = 196 ft^3, respectively, so the total volume = 12 + 196 = 208 ft^3, the answer.
