document.write( "Question 187490: Ernie earns $20 per day plus a commission of 5% on his total sales. Bert get $10 per day plus a commission of 8% on his total sales. Algebraically, determine when Bert's job will pay more than Ernie's job.
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document.write( "I am confused. Without graphing I am lost. All I have so far is this.
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document.write( " E=(x)5/100+20
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document.write( "B=(x)8/100+10\r
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document.write( "Should I set them equal to each other? I don't see how to solve this. I have been looking through notes for two days. Please help.
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document.write( "Thanks so much. \n" );
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Algebra.Com's Answer #140529 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! Well, you're off to a good start! \n" ); document.write( "You have x = total sales and you want to find when B > E, so... \n" ); document.write( "0.08x+10 > 0.05x+20 Subtract 0.05x from both sides. \n" ); document.write( "0.03x+10 > 20 Now subtract 10 from both sides. \n" ); document.write( "0.03x > 10 Finally, divide both sides by 0.03 \n" ); document.write( "x > 333.3 \n" ); document.write( "The answer is when total sales (x) exceed 333.3 \n" ); document.write( " |