Nalini thinks of an number, she doubles it and adds 5. Her answer was sixteen more than the number she thought of. What number Nalini think of? a) 10 b) 11 c) 12 d) 6

b) 11

Step-by-step explanation:

Let the number Nalini thinks of be x.

Doubles number and adds 5 = sixteen more than the number

2x + 5 = x + 16

Shift the (+5) to the other side and change to (-5).

Shift the (x) to the other side and change to (-x).

2x - x = 16 - 5

Evaluate like terms.

x = 11

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn