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Let x be a real number such that 625x = 9.  Find 125x.

 Dec 28, 2023
 #1
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625x = 9

 

x = 9/625

 

So

 

125 (9 / 625) = (125 * 9) / 625  =    (5 *25 * 9) / (25 * 25 )  =   45 / 25 =  9 / 5

 

cool cool cool

 Dec 29, 2023

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