Question

How much will 30 pencils because if 10 pencils cost $.59 and there is a $.10 discount if you purchase three dozen?

Answer 1

0.59×3=1.77
2×0.1=0.2

1.77-0.20=1.57#



1.57#

Answer 2

You know the cost of 10 pencils, so multiply the cost of 10 pencils by 3 to find the cost of 30 pencils.

10 pencils: $0.59

30 pencils: $0.59 * 3 = $1.77

The 10% discount won't be applicable for your purchase of 30 pencils because it applies to a purchase of 3 dozen, or 36 pencils.

So your answer for the cost of 30 pencils is $1.77.