Question

a rectangular fish tank has a base that is 3 inches by 7 inches. how much water will it take to fill the tank to a depth of 5 inches?
a 99 cubic inches
b 105 cubic inches
c 15 cubic inches
d 142 cubic inches

Explanation:

Step1: Recall volume formula

The volume $V$ of a rectangular - prism (fish - tank in this case) is given by $V = l\times w\times h$, where $l$ is the length, $w$ is the width, and $h$ is the height (or depth).

Step2: Identify dimensions

Here, $l = 7$ inches, $w = 3$ inches, and $h = 5$ inches.

Step3: Calculate volume

$V=7\times3\times5=105$ cubic inches.

Answer:

B. 105 cubic inches