document.write( "Question 267037: how many onces of a 40% alchol must be mixed with 12 onces of a 45% alcohol solution to make a 42% alcohol solution \n" ); document.write( "

Algebra.Com's Answer #196061 by drk(1908) $\"\"$ $\"About$

You can put this solution on YOUR website!
this is a mixture problem. Here is a table based on given information.
\n" ); document.write( "solutions . . . . . . . % . . . . . . . . ounces . . . . . . %ounces
\n" ); document.write( "40 . . . . . . . . . . . .40 . . . . . . . . . .x . . . . . . . . . . .40x
\n" ); document.write( "45 . . . . . . . . . . . .45 . . . . . . . . . .12 . . . . . . . . . .540
\n" ); document.write( "mixture . . . . . . . .42 . . . . . . . . . .x + 12. . . . . . .42x + 504
\n" ); document.write( "looking at the third column, we get
\n" ); document.write( "(i) $\"40x+%2B+540+=+42x+%2B+504\"$
\n" ); document.write( "subtract 40x and then subtract 504 to get
\n" ); document.write( "(ii) $\"2x+=+36\"$
\n" ); document.write( "divide to get
\n" ); document.write( " (iii) $\"x+=+18\"$ \n" ); document.write( "

\n" );