document.write( "Question 254854: In a single weekend, 840 people visited a local zoo. The number of people who visited on Saturday was 30 more than twice the number of people who visited the zoo on Sunday. How many visitors did the zoo have on each day?
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Algebra.Com's Answer #187152 by richwmiller(17219)\"\" \"About 
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let a=people on saturday
\n" ); document.write( "let u=number of people on sunday
\n" ); document.write( "a+u=840
\n" ); document.write( "a=30+2u
\n" ); document.write( "30+2u+u=840
\n" ); document.write( "3u=810
\n" ); document.write( "u=270
\n" ); document.write( "a=30+2*270=570
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