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3 years ago

The sum of two numbers is 18. 5 times the first number subtracted from 4/7 of the second number is 14. Find the number.

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

8 0

Answer:

The sum of two numbers is 18.

5 times the first number subtracted from 4/7 of the second number is 14.

First number --> x

Second number --> y

x + y = 18 --> x = 18-y

5x - (4/7)y = 14

5 (18-y) - (4/7)y = 14

90 - 5y - 4/7 y = 14

-5.57 y = 14-90

y = 13.64

x = 18 - 13.64

x = 4.36

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Phoenix [80]

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<h2>Explanation:</h2>

For a better understanding of the problem I've built up two triangles from the given triangular shape. So these two triangles are similar. Therefore, we can solve this problem by using ratios and corresponding sides in this way:

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But our goal is to find y. Let's call w the height of the small triangle, then:

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Applying the concept of ratios again:

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<h2>Learn more:</h2>

Right triangle: brainly.com/question/10684799

#LearnWithBrainly

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3 years ago

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ICE Princess25 [194]

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3 years ago

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elena55 [62]

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2 years ago

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-BARSIC- [3]

Answer:

See below for answer and explanations (as well as an attached graph)

Step-by-step explanation:

Pay attention to the behavior of the asymptotes. If the asymptotes are approaching a certain x-value or y-value, then that value is undefined for the function.

Take for example $y=\frac{1}{x}$ :