A bathtub can hold up to 70 gallons of water. The bath tub drains at a constant rate. when you first see the bath tub, it has 42 gallons of water in it. Three minutes later it has 14 gallons left in it. Use a signed number, and include the unit of measurement in your answer. a. at what rate is the amount of water changing each minute?

b. How many more minutes will it take for the tub to drain completely?

c. How many minutes before you arrived was the tub completely full?

step-by-step explanation:

given: ∠d and ∠b are right angles dc || ab.

to prove: △adc ≅ △cba

proof:

statement                                                                   reason

1. ∠d and ∠b are right angles                                 given

2. ac=ac                                                               common hypotenuse

3. △adc ≅ △cba                                                 hypotenuse angle theorem

therefore, △adc ≅ △cba by hl theorem.

hence proved.