document.write( "Question 796454: This question has to do with equations & inequalities: Fanny can type 150 words in 3 minutes. Gerard can type 160 words in 4 minutes. how long would it take Fanny & Gerard, working at the same time, to type a 1,800-word report. \n" ); document.write( "
Algebra.Com's Answer #481417 by Edwin McCravy(20062)\"\" \"About 
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This question has to do with equations & inequalities:
\n" ); document.write( "Fanny can type 150 words in 3 minutes.
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document.write( "Therefore Fanny's typing rate is 150 word per 3 minutes, or \"150_wds%2F3_min\" or \"150%2F3\"\"wd%2Fmin\" or 50\"wd%2Fmin\" \r\n" );
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\n" ); document.write( "Gerard can type 160 words in 4 minutes.
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document.write( "Therefore Gerard's typing rate is 160 word per 4 minutes, or \"160_wds%2F4_min\" or \"160%2F4\"\"wd%2Fmin\" or 40\"wd%2Fmin\" \r\n" );
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\n" ); document.write( "how long would it take Fanny & Gerard, working at the same time, to type a 1,800-word report.
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document.write( "Let the answer be x minutes.\r\n" );
document.write( "Their combined rate, when working at the same time is 50+40 = 90\"wd%2Fmin\".\r\n" );
document.write( "RATE times TIME = PRODUCTION\r\n" );
document.write( "            90x = 1800\r\n" );
document.write( "              x = 20 minutes.\r\n" );
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document.write( "Checking: at 50 words per minute, in 20 minutes Fanny types 50*20 or 1000\r\n" );
document.write( "words.  And in 20 minutes Gerard types 40*20 or 800 words, and sure enough\r\n" );
document.write( "together they type 1000+800 or 1800 words in 20 minutes.\r\n" );
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document.write( "Edwin
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