Question 1110116
Convert seconds to minutes
[ seconds ] x [ minutes / second ] = [ minutes ]
{{{ 40*( 1/60 ) = 2/3 }}} min
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Her rate in meters/min is:
{{{ 50/(2/3) = 75 }}} m/min
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[ distance ] = [ rate ] x [ time ]
{{{ y = 75x }}}
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check the answer:
Suppose she walks for {{{ 120 }}} secs that is {{{ 2 }}} min
She will walk {{{ 3*50 = 150 }}} m in that time
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{{{ y = 75x }}}
{{{ 150 = 75*2 }}}
{{{ 150 = 150 }}}
OK