Question 577283
{{{ 4.5*7 = 31.5 }}} hrs
Set up the ratio:
{{{ 1 / 3 = x / 31.5 }}}
Multiply both sides by {{{ 3*31.5 }}}
{{{ 31.5 = 3x }}}
{{{ x = 31.5/3 }}}
{{{ x = 10.5 }}} answer