You need [tex]3\frac{1}{3}[/tex] cups of flour to make 25 biscuits.
Step-by-step explanation:
Given,
Cups used to make 15 biscuits = 2 cups of flour
Ratio of cups to flour = 2:15
Let,
x be the number of cups needed to make 25 cups.
Ratio of cups to flour = x:25
Using proportion;
Ratio of cups to flour :: Ratio of cups to flour
[tex]2:15::x:25[/tex]
Product of mean = Product of extreme
[tex]15*x=25*2\\15x=50[/tex]
Dividing both sides by 15
[tex]\frac{15x}{15}=\frac{50}{15}\\\\x=\frac{10}{3}\\\\x=3\frac{1}{3}[/tex]
You need [tex]3\frac{1}{3}[/tex] cups of flour to make 25 biscuits.
Keywords: ratio, proportion
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