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5 votes
If we take 30% of some number and add 60.2, we get the original number. What is it?

User Alvery
by
6.7k points

2 Answers

4 votes
Set up an equation:
0.30x+60.2=x
Solve for x:
0.30-x=-60.2
-0.7x=-60.2
x=86
User Edward
by
6.5k points
2 votes
Answer:
original number is 86

Step-by-step explanation:
Assume that the number you are looking for is x.
Now, we are given that:
30% of the number "x" added to 60.2 will give us x again
Changing this to an equation, we will get:
30% * x + 60.2 = x
This can be written as:
0.3x + 60.2 = x
Now, we will solve for x as follows:
0.3x + 60.2 = x
x - 0.3x = 60.2
0.7x = 60.2
x = (60.2) / (0.7)
x = 86

Hope this helps :)
User Phuah Yee Keat
by
7.3k points