Question 1099867
Let {{{ x }}} = number of pieces sold at original price
{{{ 88 - x }}} = number of pieces sold at reduced price
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{{{ 10.5x + 8.5*( 88 - x ) = 794 }}}
{{{ 10.5x + 748 - 8.5x = 794 }}}
{{{ 2x = 46 }}}
{{{ x = 23 }}}
and
{{{ 88 - x = 88 - 23 }}}
{{{ 88 - x = 65 }}}
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They sold 23 pieces at the original price
They sold 65 pieces at the reduced price
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check:
{{{ 10.5x + 8.5*( 88 - x ) = 794 }}}
{{{ 10.5*23 + 8.5*65 = 794 }}}
{{{ 241.5 + 552.5 = 794 }}}
{{{ 794 = 794 }}}
OK