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Olegator [25]
2 years ago
7

A brother and sister attend the same school, and they walk from home to school using the same route. It takes the brother 24 min

utes to walk to school, and it takes the sister 18 minutes to walk to school. If the brother leaves home three minutes earlier than the sister, will the sister pass the brother>
Mathematics
1 answer:
madam [21]2 years ago
5 0

Answer:

No

Step-by-step explanation:

24 - 3 = 21 minutes

21 > 18

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Find two rational expressions a / b and c / d that produce the result x − 1 / x2 when using the following operations. Answers
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Answer:

a) Let \frac{a}{b}=\frac{-1}{x^2}, \text{ and } \frac{c}{d}=\frac{1}{x}.

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\frac{a}{b}+\frac{c}{d}=\frac{-1}{x^2}+\frac{1}{x}=\frac{-x+x^2}{x^3}=\frac{x(x-1)}{xx^2}=\frac{x-1}{x^2}

b)

Let \frac{a}{b}=\frac{1}{x}, \text{ and } \frac{c}{d}=\frac{1}{x^2}.

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Let \frac{a}{b}=\frac{x-1}{x}, \text{ and } \frac{c}{d}=\frac{x}{1}.

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