Question 1158835
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Kathy bicycles 8 ​km/h faster than Javier. In the same time it takes Javier to bicycle 33 km, <s>comma</s> Kathy can bicycle 57 km. How fast does each bicyclist​ travel?
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Javier's speed, x
Kathy's speed, x+8


The times for these two distances are equal:
{{{33/x=57/(x+8)}}}

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{{{11/x=19/(x+3)}}}, after multiply both sides by {{{1/3}}}.

{{{11(x+8)=19x}}}

{{{11x+88=19x}}}

{{{8x=88}}}

{{{highlight(x=11)}}}----------Javier's speed
{{{highlight(19)}}}---------Kathy's speed