document.write( "Question 1174250:  A medical supply company found out that there is a demand on a new brand of alcohol in the market.There was demand for 500mL and 1L with the amount Php 80
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document.write( "and Php130, respectively
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document.write( "  A.What is the slope?
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document.write( "  B.What is the linear function represent the given problem if x is the number of alcohol and y is the price of alcohol?
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document.write( "  C.How much does 750mL cost? \n" );
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| Algebra.Com's Answer #850701 by CPhill(1987)     You can put this solution on YOUR website! Let's break down this problem step-by-step.\r \n" ); document.write( "\n" ); document.write( "**Understanding the Data**\r \n" ); document.write( "\n" ); document.write( "* We have two data points: \n" ); document.write( " * (500 mL, Php 80) \n" ); document.write( " * (1000 mL, Php 130)\r \n" ); document.write( "\n" ); document.write( "**A. Finding the Slope**\r \n" ); document.write( "\n" ); document.write( "* Let's use the slope formula: m = (y2 - y1) / (x2 - x1) \n" ); document.write( " * Where: \n" ); document.write( " * (x1, y1) = (500, 80) \n" ); document.write( " * (x2, y2) = (1000, 130)\r \n" ); document.write( "\n" ); document.write( "* Substitute the values: \n" ); document.write( " * m = (130 - 80) / (1000 - 500) \n" ); document.write( " * m = 50 / 500 \n" ); document.write( " * m = 1/10 or 0.1\r \n" ); document.write( "\n" ); document.write( "* Therefore, the slope is 0.1 (Php per mL).\r \n" ); document.write( "\n" ); document.write( "**B. Finding the Linear Function**\r \n" ); document.write( "\n" ); document.write( "* We'll use the point-slope form of a linear equation: y - y1 = m(x - x1) \n" ); document.write( " * Using the point (500, 80) and the slope m = 0.1: \n" ); document.write( " * y - 80 = 0.1(x - 500) \n" ); document.write( " * y - 80 = 0.1x - 50 \n" ); document.write( " * y = 0.1x - 50 + 80 \n" ); document.write( " * y = 0.1x + 30\r \n" ); document.write( "\n" ); document.write( "* Therefore, the linear function is y = 0.1x + 30.\r \n" ); document.write( "\n" ); document.write( "**C. Finding the Cost of 750 mL**\r \n" ); document.write( "\n" ); document.write( "* Substitute x = 750 mL into the linear function: \n" ); document.write( " * y = 0.1(750) + 30 \n" ); document.write( " * y = 75 + 30 \n" ); document.write( " * y = 105\r \n" ); document.write( "\n" ); document.write( "* Therefore, 750 mL of alcohol will cost Php 105. \n" ); document.write( " \n" ); document.write( " |