After 45 seconds, Camden's bathtub fills with 3 inches of water. How many seconds will it take to fill Camden's tub with 20 inches of water?

So you have to find how many seconds it takes to fill up with 1 inch.

TO find that, you have to divide 45/3 which equals to 15.

So it takes 15 seconds for 1 inch. The question is asking you to find out how many seconds will it take to fill the tub with 20 inches.

SO your gonna multiply 15*20.

15*20 = 300

So it would take 300 seconds to fill up Camden's tub.