document.write( "Question 50206: This is what I have but when I worked it out it was inconceivable so I know I did something wrong. Please help. Andrea\r
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document.write( "Phil is making a Starbuck’s ® run for his exhausted Math 105 classes. He is going to buy a combination of Lattes and Cappuccinos. The Lattes cost $4 each and the Cappuccinos cost $3 each. If he needs 30 drinks total and has $100 to spend, how many of each should he buy?\r
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document.write( "Lattes - $4 each - Quantity is x - Total is 4x
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document.write( "Cappuccinos - $3 each - Quantity is 30-x - Total is 3(30-x) or 90-3x
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document.write( "Mixture - $100 to spend - Quantity is 30 - Total is 3000\r
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document.write( "So then I said 4x+90-3x=3000
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document.write( "x=2910\r
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document.write( "I think I have the right idea but obviously it doesn't work. \n" );
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Algebra.Com's Answer #33348 by mathchemprofessor(65)![]() ![]() You can put this solution on YOUR website! This is what I have but when I worked it out it was inconceivable so I know I did something wrong. Please help. Andrea \n" ); document.write( "Phil is making a Starbuck’s ® run for his exhausted Math 105 classes. He is going to buy a combination of Lattes and Cappuccinos. The Lattes cost $4 each and the Cappuccinos cost $3 each. If he needs 30 drinks total and has $100 to spend, how many of each should he buy? \n" ); document.write( "Lattes - $4 each - Quantity is x - Total is 4x \n" ); document.write( "Cappuccinos - $3 each - Quantity is 30-x - Total is 3(30-x) or 90-3x \n" ); document.write( "Mixture - $100 to spend - Quantity is 30 - Total is 3000 \n" ); document.write( "So then I said 4x+90-3x=3000 \n" ); document.write( "x=2910 \n" ); document.write( "I think I have the right idea but obviously it doesn't work.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "THE LAST FEW STEPS WILL BE AS FOLLOWS: \n" ); document.write( "Total amount spent=4x +(90-3x)=100 \n" ); document.write( "4x-3x+90=100 \n" ); document.write( "x+90=100 \n" ); document.write( "Subtracting 90 on both sides, we get \n" ); document.write( "x=100-90=10 \n" ); document.write( "So the number of Lattes bought=10 for 10($4)=$40 \n" ); document.write( "Number of Cappuccinos bought=30-10=20 for 20($3)=$60 \n" ); document.write( "OK?\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |