A fish tank in the shape of a right rectangular prism is 12.5 inches long, 6 inches wide, and 8 inches high.
What is the total amount of water needed, to the nearest cubic inch, to fill 90% of the fish tank with water?
ANSWERS :
A : 90 cubic inches
B : 540 cubic inches
C : 690 cubic inches
D : 610 cubic inches
yeah, that’s it, but whats the answer?
argh i have a test pls helppppppp
The answer is B
shes right the answer is B
To find the total amount of water needed to fill 90% of the fish tank, we will first calculate the volume of the fish tank, and then multiply it by 90% to get the amount of water needed.
The volume of a right rectangular prism can be found by multiplying its length, width, and height together.
Given:
Length = 12.5 inches
Width = 6 inches
Height = 8 inches
Volume of the fish tank = Length * Width * Height
Substituting the given values, we get:
Volume = 12.5 inches * 6 inches * 8 inches
Calculating this, we find:
Volume = 600 cubic inches
Next, we need to find 90% of the volume, which is the amount of water needed. We can calculate this by multiplying the volume by 0.9.
Water needed = Volume * 0.9
Substituting the volume, we get:
Water needed = 600 cubic inches * 0.9
Calculating this, we find:
Water needed = 540 cubic inches
Therefore, the correct answer is B: 540 cubic inches.
as with all such prisms,
V = Bh, so
9/10 * 12.5 * 6 * 8 = ____ in^3