document.write( "Question 1041802: Eva created a coffee blend for her restaurant by mixing Kenya and French Roast coffee beans. The Kenya beans cost $15 per pound and the French Roast costs $8 per pound. She bought a total of 10 pounds of coffee for a total of $97.50.
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document.write( "How much of each type of bean did she buy?
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document.write( "Select one:
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document.write( "a. 1.5 lbs Kenya and 8.5 lbs French Roast
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document.write( "b. 4 lbs Kenya and 6 lbs French Roast
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document.write( "c. 3 lbs Kenya and 7 lbs French Roast
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document.write( "d. 2.5 lbs Kenya and 7.5 lbs French Roast\r
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document.write( "Identify the chart that accurately displays the information and will help you solve the problem.\r
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document.write( "How many pounds of walnuts (cost: $7.60 per pound) must be mixed with 6 pounds of cashews (cost: $12 per pound) to make a mixture of nuts that costs $9.25 per pound?\r
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document.write( "Select one:
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document.write( "a.
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document.write( "Total cost ($) = Price ($/pound) * Amount (pounds)
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document.write( "Walnuts 7.6x = 7.60 * x
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document.write( "Cashews 72.00 = 12.00 * 6
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document.write( "Total Mix 9.25(6x) = 9.25
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document.write( "* 6x
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document.write( "b.
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document.write( "Total cost ($) = Price ($/pound) +
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document.write( "Amount (pounds)
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document.write( "Walnuts x+7.6 = 7.60 +
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document.write( "x
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document.write( "Cashews 18
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document.write( "= 12.00 +
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document.write( "6
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document.write( "Total Mix 9.25+(x + 6) = 9.25 +
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document.write( "x + 6
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document.write( "c.
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document.write( "Total cost ($) = Price ($/pound) * Amount (pounds)
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document.write( "Walnuts 45.60
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document.write( "= 7.60 * 6
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document.write( "Cashews 12x = 12.00 * x
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document.write( "Total Mix 9.25(x + 6) = 9.25
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document.write( "* x + 6
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document.write( "d.
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document.write( "Total cost ($) = Price ($/pound) * Amount (pounds)
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document.write( "Walnuts 7.6x = 7.60 * x
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document.write( "Cashews 72.00 = 12.00 * 6
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document.write( "Total Mix 9.25(x + 6) = 9.25 * x + 6\r
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document.write( "How many pounds of walnuts that cost $7.60 per pound must be mixed with 6 pounds of cashews that costs $12 per pound to make a mixture of nuts that costs $9.25 per pound?
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document.write( "Select one:
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document.write( "a. 10.5 pounds
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document.write( "b. 10 pounds
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document.write( "c. 8 pounds
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document.write( "d. 12 pounds\r
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document.write( "A chemist needs 40 liters of 20% acid solution. She has containers of 10% solution and 40% solution.\r
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document.write( "How many liters of each should she combine to get the needed solution?\r
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document.write( "Select one:
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document.write( "a. 26 liters of the 10% solution, and 14 liters of the 40% solution
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document.write( "b. 12 liters of the 10% solution, and 28 liters of the 40% solution
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document.write( "c. 26 2/3 liters of the 10% solution, and 13 1/3 liters of the 40% solution
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document.write( "d. 20 liters of the 10% solution, and 20 liters of the 40% solution\r
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document.write( "
Algebra.Com's Answer #656713 by stanbon(75887) ![]() You can put this solution on YOUR website! Eva created a coffee blend for her restaurant by mixing Kenya and French Roast coffee beans. The Kenya beans cost $15 per pound and the French Roast costs $8 per pound. She bought a total of 10 pounds of coffee for a total of $97.50. \n" ); document.write( "How much of each type of bean did she buy? \n" ); document.write( "---- \n" ); document.write( "value + value = value \n" ); document.write( "15x + 8(10-x) = 97.5 \n" ); document.write( "7x = 17.5 \n" ); document.write( "x = 2.5 lbs (amt. of Kenya beans) \n" ); document.write( "10-x = 7.5 lbs (amt of French Roast beans) \n" ); document.write( "------------------------------------------\r \n" ); document.write( "\n" ); document.write( "Identify the chart that accurately displays the information and will help you solve the problem. \n" ); document.write( "How many pounds of walnuts (cost: $7.60 per pound) must be mixed with 6 pounds of cashews (cost: $12 per pound) to make a mixture of nuts that costs $9.25 per pound? \n" ); document.write( "Select one: \n" ); document.write( "value + value = value \n" ); document.write( "Note: 7.6x + 12*6 = 9.25*(x+6) \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "760x + 1200*6 = 925*x + 925*6 \n" ); document.write( "-165x = -275*6 \n" ); document.write( "x = 10 lbs (amt. of walnuts needed) \n" ); document.write( "--------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "A chemist needs 40 liters of 20% acid solution. She has containers of 10% solution and 40% solution. \n" ); document.write( "How many liters of each should she combine to get the needed solution? \n" ); document.write( "acid + acid = acid \n" ); document.write( "0.10x + 0.40(40-x) = 0.20*40 \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "10x + 40*40 - 40x = 20*40 \n" ); document.write( "-30 x = -20*40 \n" ); document.write( "x = 26 2/3 liters (amt. of 10% needed) \n" ); document.write( "40-x = 13 1/3 liters (amt of 40% needed) \n" ); document.write( "--------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "------------ \n" ); document.write( " |