document.write( "Question 848652: In a school 50% of the students are younger than 10, 1/20 are 10 years old and 1/10 are older than 10 but younger than 12, the remaining 70 students are 12 years or older. How many students are 10 years old?
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Algebra.Com's Answer #511232 by rvfer(117)![]() ![]() ![]() You can put this solution on YOUR website! 0.50 younger than 10 \n" ); document.write( "0.05 are 10 \n" ); document.write( "0.10 older than 10 but younger than 12 \n" ); document.write( "70 students 12 or older \n" ); document.write( "How many are 10 yrs old? \n" ); document.write( "0.50+0.05+0.10=0.65=65% \n" ); document.write( "70 are 35% \n" ); document.write( "70/0.35=200 total \n" ); document.write( "200*0.05=10 students ten yrs old \n" ); document.write( " |