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Algebra
Pregunta

A \( 600 \) gallon tank of water is full of water....

\( 600 \) gallon tank of water is full of water. The tank begins to drain at a rate of \( 15 \) gallons per minute. 

(a) ( \( 3 \) points) Write a formula for a function \( W \) that gives the number of gallons of water in the tank after \( t \) minutes. 

(b) ( \( 3 \) points) Find \( W ( 7 ) \) . Interpret its meaning in the context of the problem. 

(c) ( \( 3 \) points) Find the \( y \) -intercept. Interpret its meaning in the context of this problem. 

(d) (3 points) Find the \( x \) -intercept. Interpret its meaning in the context of this problem 

Answer

a) W=600-15t

b) W(7)=600-107=493 gallon

c) t=0,W=600

d) W=0,t=40 minutes.

Solución
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