Jada walks up to a tank of water that can hold up to 10 gallons. When it is active, a drain empties water from the tank at a constant rate. When Jada first sees the tank, it contains 7 gallons of water. Three minutes later, the tank contains 5 gallons of water. At what rate is the amount of water in the tank changing?

The rate at which the tank is changing water is 2/3 gallons per minute

Step-by-step explanation:

Step 1

In 3 mins, the tank losses 7 gallons of water - 5 gallons of water

= 7- 5 = 2 gallons of water

In  3 minutes, the tank loses , 2 gallons of water

step 2

To find  rate at which amount of water is changing

if 3 minutes, tank loses 2 gallons of water.

then 1 minute the tank will lose = 2/3 gallons

Therefore rate at which tank is changing water is 2/3 gallons per minute

answer: a. 13/44

step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.