How Deep Will Water Be in a Tank After Two Hours?

[jackleyt]

Homework Statement

A water tank is a rectangular box with a base which is square of side length 5 meters. At t=0 hours it has water to a depth of 2 meters. The rate water flows into the tank after t hours is 1+(t/2) m^3/hr. Make a graph of this on graph paper. Use your graph to find the depth of water in the tank after 2 hours.

Homework Equations

Area of trapezoid = (b1+b2)/2 * height

The Attempt at a Solution

 

[whybother]

Did you make the graph? It should just be a matter of reading from what you've drawn. Is the problem conceptual with making the graph itself or is it something else?

You have volume of water on the y-axis and time on the x-axis, you know the initial height (and with the dimensions of the box you can find the volume), and you know the slope of the line. That's all you need.