Answer: 8 times.
Step-by-step explanation:
I will answer in English:
This says:
The volume of a cube is 125cm^3
How many times the volume will increase if we duplicate the lenght of the side?
If L is the lenght of the side, we have that the volume of the cube is:
V = L^3
If we duplicate the lenght of the side, the new volume is:
V = (2*L)^3 = 8*L^3
So we can see that the volume of the new cube is 8 times the volume of the previous cube.
Now, we can do the math, for our original cube we have:
L^3 = 125cm^3
L = 5cm
the new cube has L' = 2*L = 10cm
The volume of this cube is:
V' = L'^3 = 10cm^3 = 1000cm^3
the ratio V'/V is:
1000cm^3/125cm^3 = 8
Answer:C the number of brushes
Step-by-step explanation:
Z represents the number of brushes, which if it’s 0 it means you’ve not purchased any.
Answer:
Answer: the 5-pound bag for $2.75 has the lowest price per pound.
Step-by-step explanation:
At the grocery store, she sees a 10-pound bag of potato for $5.90. It means that the cost per pound of potato is
5.9/10 = $0.59
She a 5-pound bag for $2.75. It means that the cost per pound of potato is
2.75/5 = $0.55
She sees a 11/2 pound bag for $0.99. It means that the cost per pound of potato is
5.5/0.99 = $5.56
Therefore, the 5-pound bag for $2.75 has the lowest price per pound.
Step-by-step explanation: