document.write( "Question 1154023: Kim is starting a business tutoring students in math. She rents an office for 400$ per month and charge 40$ per hour per student.
\n" ); document.write( "write an equation to represent the total profit kim makes each week.
\n" ); document.write( "If kim has 15 students for one hour per week how much profit does she make in 1 week?
\n" ); document.write( "How many students per week would kim have to tutor for 1 hour in order to make 800$ per week? \n" ); document.write( "

Algebra.Com's Answer #776390 by ramkikk66(644) $\"\"$ $\"About$

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Basic formula is
\n" ); document.write( "Profit = Revenue - Cost\r
\n" ); document.write( "\n" ); document.write( "Part 1)
\n" ); document.write( "Cost = $400 per month (the rental cost)
\n" ); document.write( "Let's assume that a month is 4 weeks, since the profit has to be calculated weekly.
\n" ); document.write( "So weekly cost = $400/4 = $100 (this is an approximation, in many rental offices the weekly rent would not be 1/4 of the monthly rent, but it is close)\r
\n" ); document.write( "\n" ); document.write( "Revenue for 1 week with 15 students at $40 per student = 15 * 40 = $600\r
\n" ); document.write( "\n" ); document.write( "So profit for 1 week = Weekly Revenue - weekly cost = $600 - $100 = $500\r
\n" ); document.write( "\n" ); document.write( "Ans = $500\r
\n" ); document.write( "\n" ); document.write( "Part 2)
\n" ); document.write( "If she has to make a profit of $800, her revenue has to be $800 + $100 = $900
\n" ); document.write( "(Revenue = Profit + cost)
\n" ); document.write( "To make $900 at $40 per hour, she has to tutor 900 / 40 = 22.5 or 23 students.
\n" ); document.write( "(Since no. of students cannot be a fraction, we round it up to the next higher number)
\n" ); document.write( "Ans = 23 \n" ); document.write( "

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