Answer:
11
Step-by-step explanation:
H =V/(LxW)/3
H = 297/(9x9)/3
H = 297/(81)/3
H = 297/27
H = 11
Therefore, the height of the pyramid is 11ft square
65.0
This is because 4 is not a big enough number to round up, so you must round down. When it is 5 and over, you can round up.
Answer:
56 dollars are earned for recycling 28 pounds of copper.
Step-by-step explanation:
Quantity of copper recycled = 
pounds
Amount earned in dollars for recycling pounds of copper = 
Also,
Quantity of copper recycled = 
pounds
Therefore,
Amount earned in dollars for recycling pounds of copper = 
dollars
So,
56 dollars are earned for recycling 28 pounds of copper.
Answer:
CAB = 54
ABC = 21
ACB = 105
DCB = 75
Step-by-step explanation:
18x - 15 = (13x - 11) + (4x + 1)
18x - 15 = 17x - 10
x = 5
CAB = 13x - 11 = 13(5) - 11 = 65 - 11 = 54
ABC = 4x + 1 = 4(5) + 1 = 20 + 1 = 21
ACB = 180 - (CAB + ABC) = 180 - (54 + 21) = 180 - 75 = 105
DCB = 180 - ACB = 180 - 105 = 75
