Question

let c be the number of cups of walnuts amelia needs to buy. describe the situation with an equation. $1\frac{1}{4}+c = 2\frac{3}{4}$
how many cups of walnuts does amelia need to buy?
amelia needs to buy \square cups of walnuts.
$\

$$\begin{align}1\\frac{1}{4}+c &= 2\\frac{3}{4}\\ -1\\frac{1}{4}\\ \\ \\ \\ \\ \\ \\ -1\\frac{1}{4}\\end{align}$$

$

Explanation:

Step1: Isolate variable $c$

Subtract $1\frac{1}{4}$ from both sides:
$$1\frac{1}{4} + c - 1\frac{1}{4} = 2\frac{3}{4} - 1\frac{1}{4}$$

Step2: Calculate the difference

Subtract mixed numbers:
$$c = 2\frac{3}{4} - 1\frac{1}{4} = 1\frac{2}{4} = 1\frac{1}{2}$$

Answer:

Amelia needs to buy $1\frac{1}{2}$ cups of walnuts.