Question

Caroline was thinking of a number. Caroline doubles it and gets an answer of 9.9. What was the original number?

Answer 1

Hey Mate!!

Let what Caroline thought be "x".

2x = 9.9

x = 9.9/2

x= 4.95

Therefore, the number that Caroline thought is 4.95

Hope this helps you!!

Answer 2

Answer:

Step-by-step explanation:

Let’s call Caroline’s first number Y:

Y doubled (times by 2) is 9.9

so we get this equation:

Y x 2 =9.9

divide both sides by 2

Y = 9.9 / 2

Y = 4.95

the original number was 4.95