Answer:
he would have ran 3 miles
Step-by-step explanation:
because he runs 1 mile ever 20 mins
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[tex]2 \frac{1}{4} = \frac{8}{4} + \frac{1}{4} = \frac{9}{4} \: \: miles \\ [/tex]
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[tex]45 \: \: minutes = \frac{45}{60} \: \:hours \\ [/tex]
[tex] \frac{3}{4} \: \: hours \\ [/tex]
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[tex] \frac{3}{4} \: \: hours \: → \frac{9}{4} \: \: miles \\ [/tex]
Thus ;
[tex] \frac{ \frac{9}{4} }{ \frac{3}{4} } = \frac{9}{3} = 3 \\ [/tex]
So Jeffery can run 3 miles per hour .
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