Question

please help me find out the answer​

Answer 1

Answer:

6.

let number be x

3x-5=16

3x=16-5=11

x=11/3

7.

let number be x

when divided by 4

x/4=16

x=16*4

x=64

8.

let number be x

one-third of x added to 5

1/3x +5=8

1/3x = 3

x=3*3/1

x=9

10.

average of three students (x,y,z) is 16

x=12 , y=20 , z=?

x+y+z/3=16

12+20+z=16*3

z=48-32

z=16

11.

no.of notebooks he has =x

thrice of notebooks subracted from 54

3x-54=6

3x=54+6=60

x=60/3

x=20