document.write( "Question 992550: Jason earned $42 each of the last two weeks, and $58 this week. In order to maintain an average of at least $50 a week, how much must Jason earn this week? \n" ); document.write( "
Algebra.Com's Answer #612174 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "To average $50 over 4 weeks, \n" ); document.write( "the sum of his earnings must be: \n" ); document.write( "4*$50=$200 \n" ); document.write( ". \n" ); document.write( "The sum of his earnings the first three weeks was: \n" ); document.write( "$42+$42+$58=$142 \n" ); document.write( ". \n" ); document.write( "So for the fourth week he must earn: \n" ); document.write( "$200-$142=$58 \n" ); document.write( ". \n" ); document.write( "ANSWER: he must earn $58 the fourth week to average $50 per week. \n" ); document.write( " |