A bathtub that holds 43 gallons of water contains 18 gallons of water. You begin filling it, and after 5 minutes, the tub is full.

Enter an equation in standard form to model the linear situation.

Question

Alayna Waters

Mathematics

13 March, 13:39

A bathtub that holds 43 gallons of water contains 18 gallons of water. You begin filling it, and after 5 minutes, the tub is full.

Enter an equation in standard form to model the linear situation.

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Answers (1)

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Gillian Cherry · Answer 1

The tub holds 43 gallons ... it contains 18 ... (43 - 18) = 25 ... so it needs 25 gallons ... after 5 minutes, the tub is full ... so it fills at a rate of 25/5 = 5 gallons per minute

y = 5x + 18 ... where y is the total gallons and x is the number of minutes

but we need it in standard form ...

y = 5x + 18

-5x + y = 18

5x - y = - 18 < = = standard form

A bathtub that holds 43 gallons of water contains 18 gallons of water. You begin filling it, and after 5 minutes, the tub is full.Enter an equation in standard form to model the linear situation.

A bathtub that holds 43 gallons of water contains 18 gallons of water. You begin filling it, and after 5 minutes, the tub is full.

Enter an equation in standard form to model the linear situation.