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

we conclude that the cost of 100 pencils = $11

Explanation:

Brianna can buy 14 pencils for $1.50 at the school store.

so

unit rate = $1.50 / 14 pencils

= 0.11 USD per pencil

Thus,

The cost of 1 pencil = $0.11

The cost of 100 pencils = $0.11 × 100

= $11

Therefore, we conclude that the cost of 100 pencils = $11