147k views
2 votes
I thought of a number, added 4 5/7 to it, and got the number 12 times as big as my original what was my number

2 Answers

4 votes

Answer:

3/7

Explanation:

User Besthost
by
8.0k points
3 votes
Let's call the number you thought of n. Then what the two steps you took can be written as an equation:

n+4(5)/(7)=12n

Subtract n to get all of your variables to one side:

4(5)/(7)=11n

At this point, I recommend turning your mixed number into an improper fraction. It will make things easier later on:

(33)/(7)=11n

Now divide both sides by 11 to get the value of n:

(3)/(7)=n
User Maarten Veerman
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories