document.write( "Question 420911: I need to find the weekly salary and commission RATE of this problem. Total compensation one week (salary+commission) on sales of $4000 is $660. The next week his total compensation on sales of $6000 was $740.
\n" ); document.write( "I know that you take the total sales and multiply it by the total commission rate variable (i used \"y\" for commission and \"x\" for weekly salary) but I can't figure out how to write the equation correctly. \n" ); document.write( "

Algebra.Com's Answer #294005 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"a\"$ = weekly salary
\n" ); document.write( "Let $\"b\"$ = commission rate
\n" ); document.write( "given:
\n" ); document.write( "1st week:
\n" ); document.write( "(1) $\"+660+-+a+=+b%2A4000+\"$
\n" ); document.write( "2nd week:
\n" ); document.write( "(2) $\"+740+-+a+=+b%2A6000+\"$
\n" ); document.write( "-----------------
\n" ); document.write( "This is 2 equations with 2 unknowns, so it's solvable
\n" ); document.write( "(1) $\"+-a+=+4000b+-+660+\"$
\n" ); document.write( "(1) $\"+a+=+-4000b+%2B+660+\"$
\n" ); document.write( "and
\n" ); document.write( "(2) $\"-a+=+6000b+-+740+\"$
\n" ); document.write( "Now add these equations
\n" ); document.write( " $\"+0+=+2000b+-+80+\"$
\n" ); document.write( " $\"+2000b+=+80+\"$
\n" ); document.write( " $\"+b+=+.04+\"$
\n" ); document.write( "The commission rate is 4%
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+a+=+-4000b+%2B+660+\"$
\n" ); document.write( "(1) $\"a+=+-4000%2A.04+%2B+660+\"$
\n" ); document.write( "(1) $\"a+=+660+-+160+\"$
\n" ); document.write( " $\"a+=+500\"$
\n" ); document.write( "The weekly salary is $500 \n" ); document.write( "

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