document.write( "Question 631789: A chemist needs 90 milliliters of a 42% solution but has only 38% and 47% solutions available. Find how many milliliters of each that should be mixed to get the desired solution. \n" ); document.write( "
Algebra.Com's Answer #397802 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "A chemist needs 90 milliliters of a 42% solution but has only 38% and 47% solutions available.
\n" ); document.write( " Set Up on ALL mixture problems is to have the same amount of the key ingredient on both sides of the EQ
\n" ); document.write( "Let x represent the amoount of 47% solution
\n" ); document.write( " \".47x+%2B+.38%2890-x%29+=+.42%2A90\" | Solve for x, multiplying EQ thru by 100 first, if you like \n" ); document.write( "
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