taytaybug20 taytaybug20

30-01-2015
Mathematics

Answered

A hot tub holding 480 gal of water begins to empty at a rate of 5 gal/min. At the same time, an empty hot tub begins to fill at a rate of 15 gal/min. Let g represent the number of gallons of water and let t represent time in minutes. The system models this situation.

How long will it take for the hot tubs to hold equal amounts of water, and how much water will that be?

g = 480 – 5t

g = 15t

Answer :

skypurpleturtle skypurpleturtle

30-01-2015

solve
480 - 5t = 15t
480 = 20t
t = 24 minutes
g= 360

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