Question

Robert is baking a cake. The recipe calls for more than 7 cups of sugar. He has already added 2 cups. Let x represent the number of more cups to be added.

Answer 1

Robert is baking a cake.

The recipe calls for more than 7 cups of sugar.

He has already added 2 cups.

Let x represent the number of more cups to be added.

Then the sum of x and 2 cups must be greater than 7 cups of sugar.

Mathematically,

$x+2>7$

We can solve the above inequality for x

Subtract 2 from both sides of the inequality

$\begin{gathered} x+2-2>7-2 \\ x>5 \end{gathered}$

Therefore, the solution of the inequality is x greater than 5.

This means that we need more than 5 cups of sugar for the recipe.