Question

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

Explanation:

Step1: Isolate variable $c$

$c = 2\frac{3}{4} - 1\frac{1}{4}$

Step2: Convert to improper fractions

$c = \frac{11}{4} - \frac{5}{4}$

Step3: Subtract numerators

$c = \frac{11-5}{4} = \frac{6}{4}$

Step4: Simplify the fraction

$c = \frac{3}{2} = 1\frac{1}{2}$

Answer:

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