Question 495686
{{{d = rt}}}
{{{d = 230}}}
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{{{(1/2)r*5t = Unknown}}}
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So, the second equation appears to be the first equation * 5/2.
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{{{(5/2)*230=575}}}
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You can do a mental exercise to determine if that's the right answer.
It traveled 1/2 as fast, so in the same amount of time it would have traveled 1/2*230 = 115 miles.
But we're also told it travelled for 5 times as long:  5*115 = 575.
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Done.