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OpenStudy (anonymous):
A number is increased by 70%, or 210. What is the original number?
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jimthompson5910 (jim_thompson5910):
70% of original number = 210 70% of x = 210 (70/100)*x = 210 0.7x = 210 I'll let you finish
OpenStudy (anonymous):
140?
jimthompson5910 (jim_thompson5910):
0.7x = 210 x = 210/0.7 x = ???
OpenStudy (anonymous):
300.
jimthompson5910 (jim_thompson5910):
good
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