4. a tank containing 35 gallons of water is leaking at a rate of gallon per minute. write an expression to determine the number of gallons left in the tank after m minutes.

The expression 35 - m is used to determine the number of gallons left in the tank after m minutes.

Solution:

Given that a tank containing 35 gallons of water is leaking at a rate of gallon per minute.

Let "m" represent the number of minutes spent

Number of gallons left in the tank = initial amount of water present – leaked amount of water

Number of gallons of water left = 35 gallons – number of minutes spent rate of leakage.

Number of gallons of water left = 35 gallons – m minutes 1 gallons per minute

Hence, the required expression is 35 – m

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step-by-step explanation:

it has the same slope and a different y-intercept

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