Question

Damien bought a box of 28 cookies. At the end of the day, 3/5 of the cookies were uneaten. To determine how many cookies were eaten, 28 can be multiplied by which decimal value?

Answer 1

To determine how many cookies were eaten, 28 can be multiplied by which decimal value of 0.4

Step-by-step explanation:

Total number of cookies = 28

Fraction of Cookies uneaten at the end of the day =
`(3)/(5)`

Hence number of cookies uneaten by the end of the day =
`(3)/(5) *28 = 16.8 = 17`

Suppose
`(3)/(5)` cookies are uneaten hence the total fraction of the eaten cookies will be

=
`5 - (3)/(5) =(2)/(5)`

To obtain in decimal value of
`(2)/(5)`

`= (2)/(5) = 0.4`

Hence 28 should be multiplied with 0.4 to determine the number of cookies which are eaten