Question 956544
Let {{{ R }}} = Steven's rate of working in jobs/hr
{{{ 3R }}} = Jamie's rate of working in jobs/hr
{{{ 1/9 }}} = their rate working together in jobs/hr
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Add their rates of working to get their rate working together
{{{ R + 3R = 1/9 }}}
{{{ 4R = 1/9 }}}
{{{ R = 1/36 }}}
{{{ 3R = 1/12 }}}
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Steven would take 36 hrs working alone