Krystal33
Krystal33
10-02-2016
Mathematics
contestada
40% of what number is 30?
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Leader
Leader
10-02-2016
30 = 40% * x
30 = 40/100 * x
30 = 4/10 * x
30 = 2/5 * x
x = 30 * 5/2
x = 15 * 5
x = 75
40% of 75 is 30
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