Ask Question
24 September, 12:54

Kath starts with a number. she adds 3 to her number then double the result. finally, she subtracts 7. if she ended with 9, what number did she start with?

+2
Answers (1)
  1. 24 September, 14:56
    0
    The answer is 5. Work backwards: first add 7 to 9, then divide by 2, then subtract 3.

    9+7=16

    16/2=8

    8-3=5

    Cross Check:

    5+3=8

    8*2=16

    16-7=9

    Final Answer: 5
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Kath starts with a number. she adds 3 to her number then double the result. finally, she subtracts 7. if she ended with 9, what number did ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers