document.write( "Question 1107107: How many pounds of tea worth $1.80 a pound must be mixed with 15 pounds of tea worth $1.10 a pound to produce a mixture worth $1.50 a pound? \n" ); document.write( "

Algebra.Com's Answer #722098 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+x+\"$ = pounds of $1.80/pound tea needed
\n" ); document.write( "--------------------------------------------------
\n" ); document.write( " $\"+%28+1.8x+%2B+15%2A1.1+%29+%2F+%28+x+%2B+15+%29+=+1.5+\"$
\n" ); document.write( " $\"+1.8x+%2B+16.5+=+1.5%2A%28+x+%2B+15+%29+\"$
\n" ); document.write( " $\"+1.8x+%2B+16.5+=+1.5x+%2B+22.5+\"$
\n" ); document.write( " $\"+.3x+=+6+\"$
\n" ); document.write( " $\"+x+=+20+\"$
\n" ); document.write( "20 pounds of $1.80/pound tea are needed
\n" ); document.write( "-----------------------------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+1.8x+%2B+15%2A1.1+%29+%2F+%28+x+%2B+15+%29+=+1.5+\"$
\n" ); document.write( " $\"+%28+1.8%2A20+%2B+15%2A1.1+%29+%2F+%28+20+%2B+15+%29+=+1.5+\"$
\n" ); document.write( " $\"+%28+36+%2B+16.5+%29+%2F+35+=+1.5+\"$
\n" ); document.write( " $\"+52.5+=+1.5%2A35+\"$
\n" ); document.write( " $\"+52.5+=+52.5+\"$
\n" ); document.write( "OK \n" ); document.write( "

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