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Levart [38]
3 years ago
6

determine os valores de x e y sabendo que os numeros x,6 e 27 sao diramente proporcionais aos numeros 2, y e 18 nessa ordem

Mathematics
1 answer:
bazaltina [42]3 years ago
3 0

Answer:

x=3 e y=4

Step-by-step explanation:

x/2=6/y=27/18

...

x/2=27/18

18.x=2.(27)

18x=54

x=54/18

x= 3

...

6/y=27/18

27y=6.(18)

27y=108

y=108/27

y=4

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First, add up the parts of the ratio...
2+3+5=10
then divide the whole into individual parts...
25/10=2.5
then multiply the value of 1 part by the amount in the ratio...
2.5 x 2  =5
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2.5 x 5 = 12.5
so the final ratio is 5kg:7.5kg:12.5kg
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7 0
3 years ago
The length of a new rectangular playing field is 55 yards longer than tripletriple the width. If the perimeter of the rectangula
asambeis [7]

Answer:

The length of the rectangle is 159923.5 and the width of 53289.5

Step-by-step explanation:

We will make 2 equations one that is the perimeter and another that is the length with respect to the width

b = w*3+55

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we will replace b with (w * 3 + 55) in the second equation

2b + 2 w = 426426

2(w*3+55) + 2w = 426426

we clear w to find its value

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8w = 426316

w = 426316/8

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Now that we have the value of w we replace it in the first equation and solve to find b

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b = 53289.5*3 + 55

b = 159868.5 + 55

b = 159923.5

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
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