03/20/19

03/20/19

#### Systems of equations

Keegan invests $6200 in two different accounts. The first account is paid 6%, the second account paid 2% in interest. At the end of the first year he had earned$324 in interest. How much was in... more

03/20/19

#### Find how much high quality coffee bean and how much cheaper coffee bean she should blend

Sarah needs to prepare 140 pounds of blended coffee beans selling for $4.45 per pound. She plans to do this by blending together a high quality bean costing$5.25 per pound and a cheaper bean at... more

03/19/19

08/27/18

#### A publisher of mathematics books is sending a questionnaire to everyone on a certain mailing list. From experience, the publisher knows that 60%...

...(continue of the question) of the people receiving the questionnaire will either ignore it or throw it away. Of the remaining group, two thirds will fill out the questionnaire, but then only two... more

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