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kramer
3 years ago
9

Liz runs 8 feet per second. Katie runs 350 feet in 31 seconds. Katie runs 350 feet in 31 seconds. Stephanie runs 1 mile in 388 s

econds. Stephanie runs 1 mile in 388 seconds. Noah runs 541 feet in 1 minute. Noah runs 541 feet in 1 minute.
Mathematics
1 answer:
VikaD [51]3 years ago
7 0

Answer: Stephanie is the fastest

Step-by-step explanation:

Here we have to find who runs faster:

Liz:

8 ft/s

Katie:

\frac{350 ft}{31 s}=11.29 ft/s

Stephanie:

\frac{1 mile}{388 s}. \frac{5280 ft}{1 mile}=\frac{5280 ft}{388 s}=13.60 ft/s

Noah:

\frac{541 ft}{1 min}. \frac{1 min}{60 s}=9.01 ft/s

As we can see after comparing, Stephanie is the fastest, since she travels more distance in less time.

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Like we did in 4(a), first find the equation of line AB and then substitute the coordinates of point C in equation and if they satisfy the equation, then all the three points lie on the straight line.

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