# A store sells different colored pens. The circle graph below represents all pens for sale at the store. There are 200 black pens for sale at the store. How many blue pens are for sale at the store. In circle graph (black pens:40%, blue pens:35%) ?

##### 2 Answers

Aug 3, 2018

175

#### Explanation:

Set up a ratio

let x = blue pens

35% = the percentage of blue pens

200 = black pens

40% = the percentage of black pens

multiplying both sides by 200 gives

Aug 3, 2018

200 pens = 40%

500 pens in total