You walk up to a tank of water that can hold up to 20 gallons. When it is active, a drain empties water from the tank at a constant rate. When you first see the tank it contains 15 gallons of water. Three minutes later, that tank contains 10 gallons of water.

At what rate is the amount of water in the tank changing? Use a signed number, and include the unit of measurement in your answer.

How many minutes will it take for the tank to drain completely? Explain or show your reasoning.

How many minutes before you arrived was the water tank completely full? Explain or show your reasoning.

5 gallons per 3 minutes

12 minutes to empty it all

it is active so it is holding 20 gallons

Step-by-step explanation:

self explanatory i think

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

stops on an even number.