Question

Ian has 12.2 ounce bottle of ketchup. He uses 1/20 of the ketchup every time he has a buffalo burger. How many ounces of ketchup are left after Ian has eaten 4 buffalo burgers.

Answer 1

First I divided 12.2 by 20 and got 0.61 so I then multiplied that by 4 and got 2.44 and I subtracted 12.2 by that and got 9.76 ounces

Answer 2

9.76 ounces

Explanation:

Ian has 12.2 ounce bottle of ketchup.

He uses
`(1)/(20)` of the ketchup every time he has a buffalo burger.

`(1)/(20)` × 12.2

= 0.61 ounces every time

He has eaten 4 buffalo burgers. So he used ketchup = 0.61 × 4

= 2.44 ounces

Now the amount of ketchup are left = 12.2 - 2.44

= 9.76 ounces

9.76 ounces of ketchup are left after Ian has eaten 4 buffalo burgers.