A dump truck weighs 11.2511.25 tons when empty. A conveyor belt pours sand into the truck at a constant rate of \frac{1}{4} 4
1
​
ton per minute until it is full.

Let tt represent the elapsed time in minutes. Let ww represent the weight of the truck after tt minutes.
​Write an equation for ww in terms of tt.

​Enter your equation in the box provided. Enter only your equation.

​

w=w=
1
$$

​

​Part B

The dump truck from Part A weighs 1818 tons when filled. At the same time the dump truck is being filled, an identical dump truck filled to capacity is being emptied at a rate of \frac{1}{8}
8
1
​
ton per minute.

How much sand is in each dump truck when the trucks are the same weight?

​Enter your answer in the box.

​