In 2005 the city agency spent $2000 to buy pencils at a cost of $5 a dozen if the agency used 3/4 of these pencils in 2005 and use the same number of pencils in 2006 how many more pencils did it have to buy to have enough pencils for all of 2006?

the need to buy 3600 pencils.

Step-by-step explanation:

In 2005 the city agency spent $2000 to buy pencils at a cost of $5 a dozen. This means that the number of dozens of pencil that they bought in 2005 is

2000/5 = 400

There are 12 pencils in a dozen. Therefore, total number of pencils that they bought in 2005 is

400 × 12 = 4800 pencils

if the agency used 3/4 of these pencils in 2005, it means that the number of pencils that they used in 2005 is

3/4 × 4800 = 3600

The number of pencils left is

4800 - 3600 = 1200 pencils

If they use the same number of pencils in 2006, then the number of pencils that they have to buy is

4800 - 1200 = 3600 pencils

5.5

step-by-step explanation: