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Leona [35]
3 years ago
6

2/ 7 y+3 1/7 y if y= 7/9

Mathematics
1 answer:
aivan3 [116]3 years ago
7 0

Answer:

  8/3 = 2 2/3

Step-by-step explanation:

(2/7)y + (3 1/7)y = (3 3/7)y = (24/7)y

For y=7/9, this is ...

  (24/7)(7/9) = 24/9 = 8/3

The value of the expression for y=7/9 is 8/3.

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Answer:

See below.

Step-by-step explanation:

Using the right triangle altitude theorem, the correct proportions are:

\dfrac{AB}{AC} = \dfrac{AC}{AD}

\dfrac{AB}{x} = \dfrac{x}{AD}

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x^2 = 25 \times 16

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\dfrac{AB}{y} = \dfrac{y}{DB}

\dfrac{25}{y} = \dfrac{y}{9}

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4 years ago
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4 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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