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Question 886343: inspector found 30 defective calculators during an inspection. if this was 0.006% of total number of calculators how many calculates were inspected.
Answer by Theo(13342)   (Show Source):
You can put this solution on YOUR website! .006% is equal to a ratio of .00006.
if x is the number of calculators and they inspected .00006 of them and that number was 30, then you get the equation of:
.00006 * x = 30
divide both sides of this equation by .00006 and you get x = 30 / .00006 = 500,000
looks like 500,000 calculators were inspected.
.006% of 500,000 is equal to .006/100 * 500,000 = 30
that's your answer.
500,000
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