SOLUTION: A number is decreased by 30% to 154. What is the original amount?
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Question 739622: A number is decreased by 30% to 154. What is the original amount?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
let x = unknown number
A number is decreased by 30% to 154
x is decreased by 30% to 154
x - 30% of x = 154
x - 0.3x = 154
0.7x = 154
x = 154/0.7
x = 220
So the original amount is 220
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