The baker should buy between 120 cups of flour to 180 cups of flour to meet her needs.
Linear equation
A linear equation is in the form:
y = mx + b
where y, x are variables, m is the rate of change and b is the initial value of y.
Let y represent the number of bread made from x cups of flour.
Each loaf requires 3.5 cups of flour plus an additional 0.25 cup for dusting. Hence:
y = (3.5 + 0.25)x = 3.75x
For 32 loaves:
x = 32 * 3.75 = 120
For 48 loaves:
x = 48 * 3.75 = 180
The baker should buy between 120 cups of flour to 180 cups of flour to meet her needs.
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