Velma made rice crispy treats in a 9*13*2.5 inch cake pan. How many 2 in by 1/2 in by 3 in crispy treats can be cut from the pan

Question

Please show me  to do it and answer. The in means inches

Answer 1

In this case, the depth of the pan (or height of the cut pieces) is unimportant.

 

We know that Area = Length x Width

 

The pan is 9 inches wide by 13 inches long, which is an area of 117 square inches.

 

Each piece is 2 inches by 1/2 inch, which is an area of 1 square inch.

 

So, the area of the pan divided by the area of each piece means that Velma can get 117 pieces.