There are 16 books on a shelf. Four sixteenths of the books are about animals. Two and adventure. The rest are mystery. How many are mystery books?

10 mystery books

Step-by-step explanation:

Animals:

Multiply the total number of books by the fraction of animal books

4/16*16

4 animal books

Adventure:

2 adventure books

Mystery:

Subtract the number of adventure and animal books from the total number of books

16-4-2

10

10 mystery books

Hope this helps! :)

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.