Question

Brianna can buy 14 pencils for $1.50 at the school store. At that rate, about how much would 100 pencils cost?

Answer 1

Answer:

Step-by-step explanation:

We can use the rule of threes

Let's solve the following equation we get from the rule of threes

$\frac{14}{1.50} = \frac{100}{x}\\\\x = \frac{100}{14}\cdot \frac{1}{1.50}\\\\x = 4.7619$

Therefore, 100 pencils would cost $4.7619 ≈ $4.8