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Sagot :
Answer:
therefore carlos walks much faster.
Explanation:
unit rate for carlos:
[tex]\sf \frac{y-y1}{x-x1}[/tex]
[tex]\sf \frac{8-4}{2-1}[/tex]
[tex]\sf \frac{4}{1}[/tex]
[tex]\sf 4[/tex] mi/h
unit rate for lucy:
[tex]\sf \frac{y-y1}{x-x1}[/tex]
[tex]\sf \frac{20-0}{8-0}[/tex]
[tex]\sf \frac{20}{8}[/tex]
[tex]\sf 2.5[/tex] mi/h
carlos speed = 4/1 = 8/2 = 12/3 .. = 4 mi/h
lucy speed = 10/4 = 20/8 = 2.5 mi/h
carlos walks faster
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