One factory needs 6 buttons to make 1 witch costume. Fill in the rate table to determine how many witch costumes the factory can make with 18, 42, 66, or 84 buttons

The factory can make 3 witch costume from 18 buttons

The factory can make 7 witch costume from 42 buttons

The factory can make 11 witch costume from 66 buttons

The factory can make 14 witch costume from 84 buttons

Step-by-step explanation:

Let us use the ratio method to complete the table

∵ A factory needs 6 buttons to make 1 witch costume

∵ There are 18 buttons

→ Find how many witch costume can make from them

→ Buttons → costume

→  6           →  1

→  18          →  x

→ By using cross multiplication

∵ x × 6 = 18 × 1

∴ 6x = 18

→ Divide both sides by 6

∴ x = 3

∴ The factory can make 3 witch costume from 18 buttons

Use the same way to find the rest

∵ There are 42 buttons

→ Buttons → costume

→  6           →  1

→  42         →  x

→ By using cross multiplication

∵ x × 6 = 42 × 1

∴ 6x = 42

→ Divide both sides by 6

∴ x = 7

∴ The factory can make 7 witch costume from 42 buttons

∵ There are 66 buttons

→ Buttons → costume

→  6           →  1

→  66         →  x

→ By using cross multiplication

∵ x × 6 = 66 × 1

∴ 6x = 66

→ Divide both sides by 6

∴ x = 11

∴ The factory can make 11 witch costume from 66 buttons

∵ There are 84 buttons

→ Buttons → costume

→  6           →  1

→  84         →  x

→ By using cross multiplication

∵ x × 6 = 84 × 1

∴ 6x = 84

→ Divide both sides by 6

∴ x = 14

∴ The factory can make 14 witch costume from 84 buttons