Question 898665
Her rate of working is:
( 1 table mat ) / ( 8 minutes )
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This is the same as:
( 1/2 of a table mat ) / ( 4 minutes )
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Multiply the top and the bottom of this
fraction by {{{ 15 }}}
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{{{ ( 15*( 1/2 )) / ( 15*4) }}}
{{{ (( 15/2 )) / 60 }}} 
{{{ 7.5 / 60 }}}
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Since {{{ 60 }}} minutes = {{{ 1 }}} hr, her
rate of working is:
7.5 table mats per hour