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pogonyaev
3 years ago
13

Janice is thinking of two numbers. She says that two times the first number plus the second number is 47. In​ addition, the firs

t number plus three times the second number is 56. Find the numbers
Mathematics
1 answer:
Whitepunk [10]3 years ago
3 0
Let the numbers be x and y, then
2x + y = 47 . . . (1)
x + 3y = 56 . . . (2)

(2) x 2 => 2x + 6y = 112 . . . (3)

(1) - (3) => -5y = -65 => y = -65/-5 = 13
From (2), x + 3(13) = 56 => x = 56 - 39 = 17

The two numbers are 13 and 17.
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Answer:

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Step-by-step explanation:

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Question asked:

How many chickens does the farmer have ?

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Let number of chickens = x

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Now, as here given that total number of legs are 118 of all the animals, and as we know that a chicken has two legs and cow has four legs, hence the equation will be :

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8 0
3 years ago
A boat is heading towards a lighthouse, where Luis is watching from a vertical distance of 107 feet above the water. Luis measur
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Using the slope concept, it is found that the distance from point A to point B is of 465 feet.

<h3>What is a slope?</h3>

The slope is given by the vertical change divided by the horizontal change, and it's also the tangent of the angle of depression.

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Hence the distance is given by:

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More can be learned about the slope concept at brainly.com/question/18090623

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2 years ago
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