System A

Mathematics

1 answer:

Doss [256]3 years ago

7 0

Both systems will have the same value of x's.

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Jane and sali cycled along the same 63 km route.

Alina [70]

Answer:

Sali's speed was 18.75 km/h.

Step-by-step explanation:

Jane took 3.5 hours to cycle the 63 km.

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So, the time required for Jane to cycle 30 km $= \frac{30}{18}=\frac{5}{3} hours$ and the time required for Sali to cycle 30 km $=\frac{30}{x} hours$

Given that, Sali started to cycle 4 minutes or $(\frac{4}{60}) or (\frac{1}{15}) hours$ after Jane started to cycle. So, the equation will be.......

$\frac{5}{3}-\frac{30}{x}= \frac{1}{15}\\ \\ \frac{30}{x}= \frac{5}{3}-\frac{1}{15}\\ \\ \frac{30}{x}= \frac{24}{15}\\ \\ 24x=450\\ \\ x= \frac{450}{24}= 18.75$

Thus, the speed of Sali was 18.75 km/h.

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2 years ago

Definition of the math word obtuse triangel

Alexxandr [17]

An obtuse triangle is a triangle which has one obtuse angle. 

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2 years ago

What is 66 2/3% as a decimal? NOW

skelet666 [1.2K]

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Step-by-step explanation:

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I don't really understand this question