document.write( "Question 456648: A traffic light is red for 25 sec, yellow for 5 sec, and green for 55 sec. What is the probability that when you reach the light, \" The Light Will Not Be Green.\" I need a tutor to check my solution and tell me if it is correct, if not PLEASE help me understand where I went wrong.\"\r
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document.write( " 25 + 5 + = 85% (100%)
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document.write( " ( 25 + 5)= 30 is the time not green
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document.write( " 25/85= 0.353 then x100 to make a percentage
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document.write( "(25 +5) (25 +5 +55 ) 30 /85 = 6/17 35.29% not green\r
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document.write( " or another way I did was
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document.write( " 25 + 5 + 55+ 85 sec.
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document.write( " 55/85= 65% of the time
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document.write( "71 % chance it won't be red.\r
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document.write( " Very confused on this problem! \n" );
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Algebra.Com's Answer #313368 by sudhanshu_kmr(1152)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "total time = 85 sec. ( 25 + 5 + 55)\r \n" ); document.write( "\n" ); document.write( "time when not green = 30 sec. ( 25 + 5)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " the probability that when you reach the light, \" The Light Will Not Be Green.\"\r \n" ); document.write( "\n" ); document.write( "= 30/85 \r \n" ); document.write( "\n" ); document.write( "= 6/17\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "to find this probability in percentage multiply with 100 i.e 6/17 *100 \r \n" ); document.write( "\n" ); document.write( "= 35 % probability (approx)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if any doubt, you welcome to get free help sudhanshu.cochin@gmail.com \n" ); document.write( " \n" ); document.write( " |