Question

David wants to fill his backyard swimming pool. His garden hose delivers 40 gallons in 5 minutes. How many gallons of water will be in the pool after 20 minutes? After 1 hour?​

Answer 1

160 Gallons

Explanation:

Becuase if u divided 40 and 5 u get 8 and 8 divided by 20 =160

Answer 2

Part a)
`160\ gallons`

Part b)
`480\ gallons`

Explanation:

Part a) How many gallons of water will be in the pool after 20 minutes?

we know that

Using proportion

`(40)/(5)(gallons)/(minutes)=(x)/(20)(gallons)/(minutes) \\ \\x=40*20/5\\ \\x=160\ gallons`

Part b) How many gallons of water will be in the pool after 1 hour

we know that

1 hour = 60 minutes

Using proportion

`(40)/(5)(gallons)/(minutes)=(x)/(60)(gallons)/(minutes) \\ \\x=40*60/5\\ \\x=480\ gallons`