Question

The ratio of goldfish to gallons of water is 7 to 2. How many goldfish can you get if you have 16 gallons of water? __________ and How many gallons of water do you need to keep 28 fish? ____________.

Answer 1

Answer: 56, 8

Explanation:

Given

The ratio of goldfish to gallons of water is 7:2

If there is 16 gallons of water. For x goldfish, We can write

`\Rightarrow (7)/(2)=(x)/(16)\\\\\Rightarrow x=7*8\\\Rightarrow x=56`

If there are 28 fish, for y gallons of water we can write

`\Rightarrow (7)/(2)=(28)/(y)\\\\\Rightarrow y=2* 4\\\Rightarrow y=8\ \text{gallons}`