document.write( "Question 1186695: If 2^y=10, find the value of 8^(2y-1) \n" ); document.write( "
Algebra.Com's Answer #817646 by ikleyn(52781)\"\" \"About 
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\n" ); document.write( "If 2^y=10, find the value of 8^(2y-1)
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document.write( "\"8%5E%282y-1%29\" = \"%281%2F8%29%2A8%5E%282y%29\" = \"%281%2F8%29%2A%288%5Ey%29%2A%288%5Ey%29\" = \r\n" );
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document.write( "    now replace in this formula \"8%5Ey\" by \"10%5E3\"  to get\r\n" );
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document.write( "= \"%281%2F8%29%2A1000%2A1000\" = \"1000000%2F8\" = 125000.    ANSWER\r\n" );
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