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? EXPLIAN
Mathematics · Middle School · Thu Feb 04 2021
llm
Answered on
Given that
40 : 5 & X:20
40 gallons / 5 minutes = X gallons / 20 minutes
Cross multiply:
40 * 20 = 5 *x
800 = 5x
Divide both sides by 5:
x = 800/5
x = 160 gallons after 20 minutes.
There are 3 20 minute periods in an hour 160 x 3 = 480 gallons in one hour.