document.write( "Question 901362: Sally has a recipe that calls for horseradish sauce that is 50% pure horseradish. at the grocery store she finds one horseradish sauce that is 10% pure horseradish and another that is 60% pure horseradish. how many teaspoons of each horseradish sauces should sally mix together to get 4 teaspoons of horseradish sauce that is 50% pure horseradish? \n" ); document.write( "
Algebra.Com's Answer #546686 by richwmiller(17219)\"\" \"About 
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a+b=4,
\n" ); document.write( "0.1*a+0.6*b=0.5*4
\n" ); document.write( "a=4-b
\n" ); document.write( "0.1*(4-b)+0.6*b=2
\n" ); document.write( "0.4-0.1b+0.6*b=2
\n" ); document.write( "0.5*b=1.6
\n" ); document.write( "b=3.2
\n" ); document.write( "a=4-b
\n" ); document.write( "a=0.8 tsp at 10% b=3.2 tsp at 60%
\n" ); document.write( "check
\n" ); document.write( "0.1*0.8+0.6*3.2=0.5*4
\n" ); document.write( "0.08+1.92=2
\n" ); document.write( "2.0=2
\n" ); document.write( "ok
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