document.write( "Question 88811: 1.Find the solution of 3x + 6y = 12 when x = 2\r
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\n" ); document.write( "\n" ); document.write( "2.Given the equation -2y + 4x = 18, find y when x = 1. \r
\n" ); document.write( "\n" ); document.write( "3.Write the equation 3x - 4y = 8 in slope-intercept form. \r
\n" ); document.write( "\n" ); document.write( "4. The cost Kim pays for chocolates varies directly as the number of pounds of chocolates she buys. She pays $5.40 for 3 pounds of chocolates. Find how much she pays for 5 pounds of chocolates.
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Algebra.Com's Answer #64620 by malakumar_kos@yahoo.com(315)\"\" \"About 
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1.Find the solution of 3x + 6y = 12 when x = 2 \r
\n" ); document.write( "\n" ); document.write( "2.Given the equation -2y + 4x = 18, find y when x = 1.
\n" ); document.write( "3.Write the equation 3x - 4y = 8 in slope-intercept form.
\n" ); document.write( "4. The cost Kim pays for chocolates varies directly as the number of pounds of chocolates she buys. She pays $5.40 for 3 pounds of chocolates. Find how much she pays for 5 pounds of chocolates. \r
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\n" ); document.write( "\n" ); document.write( " 1) When x= 2 the solution for 3x+6y = 12 will be , 3*2+6y = 12
\n" ); document.write( " 6+6y = 12
\n" ); document.write( " 6y = 12-6 = 6
\n" ); document.write( " 6y = 6
\n" ); document.write( " y = 1
\n" ); document.write( " The solution for 3x+6y = 12 when x = 2 is y = 1\r
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\n" ); document.write( "\n" ); document.write( " 3) Given eq'n is 3x-4y = 8
\n" ); document.write( " this can be expressed in slope intercept form as \r
\n" ); document.write( "\n" ); document.write( " -4y = -3x+8 divide by -4 throughout \r
\n" ); document.write( "\n" ); document.write( " y = 3x/4-2 is the required slope intercept form\r
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\n" ); document.write( "\n" ); document.write( " 4)Let the cost of chocolates be represented by C
\n" ); document.write( " Quantity of chocolates be represented by P\r
\n" ); document.write( "\n" ); document.write( " given c is directly proportional to p or C = k*p where k is a \r
\n" ); document.write( "\n" ); document.write( " proportionality constant\r
\n" ); document.write( "\n" ); document.write( " cost of 3 pounds of chocolates = $5.40 using this we will find
\n" ); document.write( " out the value of K
\n" ); document.write( " C = K*P
\n" ); document.write( " K = C/P = $ 5.40/3 = $ 1.80\r
\n" ); document.write( "\n" ); document.write( " therefore cost of 5 pounds of chocolates = C = K*5
\n" ); document.write( " = 1.80*5
\n" ); document.write( " = 9.00
\n" ); document.write( " = $ 9.00
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\n" ); document.write( "\n" ); document.write( " 2) -2y+4x = 18 When x = 1 the eq'n becomes -2y = 18-4x
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\n" ); document.write( " -2y = 18-4*1 = 18-4
\n" ); document.write( " -2y = 14 or y = 14/-2\r
\n" ); document.write( "\n" ); document.write( " y = -7
\n" ); document.write( " The solution for the given eq'n when x = 1 is y = -7\r
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