Question 251749
Let the distance traveled by each  = {{{d}}} mi
Let Leah's walking rate = {{{r}}} mi/hr
given:
for May:
{{{t[M] = 1}}} hr
{{{d = (r + 10)*t[M]}}}
{{{d = (r + 10)*1}}}
for Leah:
{{{t[L] = 3}}} hrs
{{{d = r*t[L]}}}
{{{d = r*3}}}
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They travel the same distance, so the {{{d}}}'s are equal
{{{r + 10 = 3r}}}
{{{2r = 10}}}
{{{r = 5}}} mi/hr
and
{{{r + 10 = 15}}}
May's speed is 15 mi/hr and Leah's speed is 5 mi/hr