A lasagna recipe calls for 3 3/4 cups of tomato sauce. DeMarco already has 1 1/4 cups of tomato sauce. He wants to know how many more cups of tomato sauce he needs.

Let y be the number of cups of tomato sauce Demarco still needs.
Write an equation to describe the situation.
+ . = y 1 1/4 3 3/4

1 1/4 + y = 3 3/4

How many more cups of tomato sauce dose Demarco need?

DeMarco needs ? more cups of tomato sauce.

DeMarco needs 2 1/2 more cups of tomato sauce.

The product of 2.5 and a number is 10.

First, write an equation to describe the situation
+ - . ➗ = z 2.5 10

2.5z = 10

What is the number

The number is 4.