Answer:
The height of water in the cylinder after drooping 8 marbles is 12 mm
Step-by-step explanation:
∵ The change of the height of the water varies directly with the change of the number of marbles
∵ (h2 - h1) α (x2 - x1)
∴ (h2 - h1) = k (x2 - x1)
∴ (11 - 10) = k (6 - 4)
∴ 1 = 2 k
∴ k = 1/2
∴ (h2 - h1) = 1/2 (x2 - x1)
∴ (Δh) = 1/2 (Δx)
∴ h3 - 11 = 1/2 (8 - 6)
∴ h3 = 1/2 × 2 + 11 = 12 milliliter
The problem says to add, so
3.54 + 5.12 + 2.3 =
10.96 in (your sum/perimeter)
Answer:
15
Step-by-step explanation:
3x15 =45
The variable determines what needs to be multipleed.
Answer:
3:4
Step-by-step explanation:
there are 3 sides on a triangle and 4 on a square
Answer: The volume is the product of the Length, Width, and Height: V = LWH.
Step-by-step explanation: We are given V = 240 in.3, and H = 6 in., and L = W + 3 in.
Thus 240 in.3 = (W+3 in.)*W*(6 in.) so W(W+3 in.) = 240 in.3 / 6 in. = 40 in.2
Using the distributive property and moving the constant to the left gives:
W2 + (3 in.)W - 40 in.2 = 0
This factors:
(W + 8 in.)(W - 5 in.) = 0
The first factor gives W = -8 in. which is nonsense because it is negative.
The second factor gives a valid answer of W = 5 in.