document.write( "Question 913315: Two types of tea are blended (mixed) to make a new brand for a Tea Company. A certain percentage of Type A (which is sold for €6.50 a box) is mixed with a certain quantity of Type B (sold for €4 a box). The new brand of tea is sold for €5.75 a box. Find the percentage of Type A and Type B that is blended together to form the new brand of tea. \n" ); document.write( "
Algebra.Com's Answer #554428 by josmiceli(19441)\"\" \"About 
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Let \"+a+\" = the fraction of type A used
\n" ); document.write( "Let \"+b+\" = the fraction of type B used
\n" ); document.write( "----------------
\n" ); document.write( "(1) \"+a+%2B+b+=+1+\"
\n" ); document.write( "(2) \"+%28+6.5a+%2B+4b+%29+=+5.75+\"
\n" ); document.write( "( this equation is for 1 box )
\n" ); document.write( "--------------------------
\n" ); document.write( "(2) \"+650a+%2B+400b+=+575+\"
\n" ); document.write( "and
\n" ); document.write( "(1) \"+400a+%2B+400b+=+400+\"
\n" ); document.write( "Subtract (1) from (2)
\n" ); document.write( "(2) \"+650a+%2B+400b+=+575+\"
\n" ); document.write( "(1) \"+-400a+-+400b+=+-400+\"
\n" ); document.write( "\"+250a+=+175+\"
\n" ); document.write( "\"+a+=+.7+\"
\n" ); document.write( "and, since
\n" ); document.write( "(1) \"+a+%2B+b+=+1+\"
\n" ); document.write( "(1) \"+b+=+.3+\"
\n" ); document.write( "70% of type A is needed
\n" ); document.write( "30% of type B is needed
\n" ); document.write( "
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