4 similar pencils cost $1.80. Find the cost of 14 such pencils.

Answer 1

To find the cost of 14 similar pencils, we can set up a proportion:

4 pencils cost $1.80

We can express this as:

4 pencils / $1.80 = 14 pencils / x

To solve for x, we can cross-multiply:

4 * x = $1.80 * 14

4x = $25.20

Dividing both sides by 4:

x = $25.20 / 4

x = $6.30

Therefore, the cost of 14 similar pencils is $6.30.