document.write( "Question 1169673: The business partners, A, B and C, share the profit as follows:
\n" ); document.write( "The ratio of A's share to B is 6:5 and the ration of B's share to C is 3:4. Determine:
\n" ); document.write( "1.1 A's share: B's share: C's share
\n" ); document.write( "1.2 the total profit if A gets $5000 less than C
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Algebra.Com's Answer #794471 by math_tutor2020(3817)\"\" \"About 
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\n" ); document.write( "Part (1)\r
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\n" ); document.write( "\n" ); document.write( "The ratio of A to B is 6:5
\n" ); document.write( "The ratio of B to C is 3:4\r
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\n" ); document.write( "\n" ); document.write( "Let's write the ratios together with arrows connecting them like so
\n" ); document.write( "6:5 <--> 3:4\r
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\n" ); document.write( "\n" ); document.write( "The goal is to get the inner values 5 and 3 to match up and be the same number. \r
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\n" ); document.write( "\n" ); document.write( "What we can do is multiply both parts of the first ratio by some number x
\n" ); document.write( "6:5 turns into 6x:5x\r
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\n" ); document.write( "\n" ); document.write( "Similarly,
\n" ); document.write( "3:4 turns into 3y:4y
\n" ); document.write( "for some number y\r
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\n" ); document.write( "\n" ); document.write( "The LCM of 5 and 3 is 15, so if x = 3 and y = 5, then we get
\n" ); document.write( "6x:5x = 6*3:5*3 = 18:15
\n" ); document.write( "3y:4y = 3*5:4*5 = 15:20\r
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\n" ); document.write( "\n" ); document.write( "In short, we found that
\n" ); document.write( "6:5 is equivalent to 18:15
\n" ); document.write( "3:4 is equivalent to 15:20 \r
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\n" ); document.write( "\n" ); document.write( "Then looking at
\n" ); document.write( "18:15 <--> 15:20
\n" ); document.write( "we see the inner values are 15 each\r
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\n" ); document.write( "\n" ); document.write( "We can then link the two new ratios
\n" ); document.write( "18:15 <--> 15:20 becomes 18:15:20\r
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\n" ); document.write( "\n" ); document.write( "Answer = 18:15:20\r
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\n" ); document.write( "\n" ); document.write( "Part (2)\r
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\n" ); document.write( "\n" ); document.write( "Let m be some positive number\r
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\n" ); document.write( "\n" ); document.write( "The ratio 18:15:20 means
\n" ); document.write( "A's share = 18m
\n" ); document.write( "B's share = 15m
\n" ); document.write( "C's share = 20m\r
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\n" ); document.write( "\n" ); document.write( "So basically 18m:15m:20m is equivalent to 18:15:20 if we divide all parts by m.\r
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\n" ); document.write( "\n" ); document.write( "Person A gets $5000 less compared to C, so,
\n" ); document.write( "A = C - 5000
\n" ); document.write( "18m = 20m - 5000
\n" ); document.write( "18m-20m = -5000
\n" ); document.write( "-2m = -5000
\n" ); document.write( "m = -5000/(-2)
\n" ); document.write( "m = 2500\r
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\n" ); document.write( "\n" ); document.write( "The total profit is
\n" ); document.write( "A+B+C = 18m+15m+20m
\n" ); document.write( "A+B+C = 53m
\n" ); document.write( "A+B+C = 53*2500
\n" ); document.write( "A+B+C = 132,500 dollars\r
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\n" ); document.write( "\n" ); document.write( "Or you can calculate the individual shares
\n" ); document.write( "A = 18m = 18*2500 = 45,000
\n" ); document.write( "B = 15m = 15*2500 = 37,500
\n" ); document.write( "C = 20m = 20*2500 = 50,000
\n" ); document.write( "which adds up to
\n" ); document.write( "A+B+C = 45,000+37,500+50,000 = 132,500
\n" ); document.write( "which is the same value we got earlier.\r
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\n" ); document.write( "\n" ); document.write( "Answer = Total profit is 132,500 dollars
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