SOLUTION: How can I understand how to do this? 70 is 40% of what number?

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Question 31672: How can I understand how to do this? 70 is 40% of what number?
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
70 IS WHAT 40% OF ? 70/.40=175
PROOF 150X40% OR 150X.4=70