Question

Andy and Tania are playing a number guessing game.Andy aks Tania to think of a positive number,triple number,square the result,and then add 7.if Tania's answer is 43,what was the original number? Use the concept of inverse function in your solution

Answer 1

Answer:

The number=2

Step-by-step explanation:

LET TANIA THOUGHT =x

triple=3x

sugaring=9x²

add 7 =9x²+7=43

9x²=43-7=36

9x²=36

x²=4

x=2