document.write( "Question 412010: gainard's grounds, a new coffee shop, mixes two types of coffe in their signature brew. the first type is a blend consisting of 7/10 kona beans. the second type consists of only 2/5 kona beans. how much of each type need to be mixed in order to produce a 50 ounce blend containing 1/2 kona beans \n" ); document.write( "
Algebra.Com's Answer #289457 by stanbon(75887)\"\" \"About 
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gainard's grounds, a new coffee shop, mixes two types of coffe in their signature brew. the first type is a blend consisting of 7/10 kona beans. the second type consists of only 2/5 kona beans. how much of each type need to be mixed in order to produce a 50 ounce blend containing 1/2 kona
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\n" ); document.write( "Equation:
\n" ); document.write( "kona + kona = kona
\n" ); document.write( "0.7x + (2/5)(50-x) = (1/2)*50
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\n" ); document.write( "Multiply thru by 10 to get:
\n" ); document.write( "7x + 4*50-4*x = 5*50
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\n" ); document.write( "3x = 50
\n" ); document.write( "x = 16 2/3 ounces (amt. of 70% needed)
\n" ); document.write( "50- 16 2/3 = 33 1/3 ounces (amt. of 40% needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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