Question 1049613
0.72r (just the 2 recurring) as a fraction.
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Times 10 --> 7.222...
Find n = 0.222...
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10n= 2.222...
1n = 0.222...
--------------------- Subtract
9n = 2
n = 2/9
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7 + 2/9 = 65/9
(65/9)/10 = 65/90 = 13/18
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IDK what you mean in the other 2 problems.