document.write( "Question 1000835: Jack's online test has 8 true-false questions and 7 multiple-choice questions. Each multiple choice has 4 different answer choices. How many different choices for answering the 15 questions are possible? \n" ); document.write( "
Algebra.Com's Answer #618224 by Edwin McCravy(20056)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "There are 2 ways of answering the 1st true-false question.\r\n" ); document.write( "There are 2 ways of answering the 2nd true-false question.\r\n" ); document.write( "...\r\n" ); document.write( "There are 2 ways of answering the 8th true-false question.\r\n" ); document.write( "\r\n" ); document.write( "That's 2x2x2x2x2x2x2x2 = 28 ways of answering the 8 \r\n" ); document.write( "true-false questions.\r\n" ); document.write( "\r\n" ); document.write( "For each of those ways of answering the true-false questions, \r\n" ); document.write( "\r\n" ); document.write( "There are 4 ways of answering the 1st multiple choice question.\r\n" ); document.write( "There are 4 ways of answering the 2nd multiple choice question.\r\n" ); document.write( "...\r\n" ); document.write( "There are 4 ways of answering the 7th multiple choice question.\r\n" ); document.write( "\r\n" ); document.write( "That's 3x3x3x3x3x3x3 = 37 ways of answering the 8 \r\n" ); document.write( "true-false questions.\r\n" ); document.write( "\r\n" ); document.write( "Answer: 2847 = 4194304 ways.\r\n" ); document.write( "\r\n" ); document.write( "Edwin\n" ); document.write( " |