56.3k views
15 votes
HELP ME PLEASE RIGHT NOWW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!WILL LOGIN AND GIVE BRAIN 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?
A.540 cubic inches

B.610 cubic inches

C.90 cubic inches

D.690 cubic inches

User Degath
by
4.7k points

2 Answers

14 votes

Final answer:

The volume of the fish tank is 600 cubic inches. To fill 90% of the tank, 90% of the volume, which is 540 cubic inches, is needed. Therefore, option A is the correct answer.

Step-by-step explanation:

To find the total amount of water needed to fill 90% of the fish tank, first we calculate the volume of the tank and then take 90% of that volume. The formula for the volume V of a right rectangular prism is V = length × width × height. Using the given dimensions:

  • Length (l) = 12.5 inches
  • Width (w) = 6 inches
  • Height (h) = 8 inches

The volume of the tank is:

V = l × w × h = 12.5 × 6 × 8 = 600 cubic inches

Now, calculate 90% of the total volume:

90% of 600 cubic inches = 0.9 × 600 = 540 cubic inches. Therefore, the total amount of water needed to fill 90% of the fish tank is 540 cubic inches, which corresponds to option A.

User Swasidhant
by
5.2k points
3 votes

Answer:

A. 540 cubic inches

Step-by-step explanation:

so 100% full would be 600cubic inches. ( I get this by finding volume Length times width times height)

Find 90% if 600 and get 540 cubic inches.

to find 90% do 0.9 times 600

User Emil Condrea
by
5.3k points