3 years ago

It take Zoe 12.5 minutes to swim 20 laps around the pool what is Zoe's unit rate

Mathematics

2 answers:

Neporo4naja [7]3 years ago

8 0

All you have to do is divide 12.5 minutes by 20 laps. $\\ \frac{minutes}{laps}= \frac{12.5}{20}=0.625 \\$

allochka39001 [22]3 years ago

6 0

1.6 min. per lap
All you have to do is divide 20 by 12.5

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Answer:

You can determine the root of the equation by multiple methods. However, that answer is correct. The root is -2.

Step-by-step explanation:

A root is where the graph crosses the x-axis. One trick I use to see if it is a root is by taking the numerator and plugging in the number for x. For example, $\frac{x+2}{x^{2} -2}$ , and take the -2 and plug it in for x. The numerator would cancel out because -2 + 2 = 0. That is the way you can determine if it is a root or not.