Question

Mark was thinking of a number. Mark adds 11 to it, then doubles it and gets an answer of 40.5. What was the original number?
Mark was thinking of a number. Mark adds 11 to it, then doubles it and gets an answer of 40.5. What was the original number?

Answer 1

Answer:

9.25

Step-by-step explanation:

$(40.5 \div 2) - 11 \\ = 20.25 - 11 \\ = 9.25$

You have to apply the opposite process,,

Hope it helps,,,