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3 years ago

12

4y = 2x - 4 2y = -4x + 2

1 answer:

OlgaM077 [116]3 years ago

5 0

59 that the anaqueles y un poco del aire

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2 years ago

You are arranging a meeting for 56 people. You want 8 people at each table. How many tables do you need?

Lubov Fominskaja [6]

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4 years ago

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Answer the question.

vaieri [72.5K]

Answer:

$\frac{8 {x}^{2} y}{6 {x}^{2} {y}^{2} } \\ = \frac{8×3}{6 {y}^{2} } \\ = \frac{24}{6 \times {3}^{2} } \\ = \frac{4}{9}$

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3 years ago

Help me understand this problem

Kryger [21]

It ΔABC and ΔXYZ are similar, then the sides of the triangles are in proportion.

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We have BC = 8, AC = 7, Y = 28, XZ = 49 and YZ = 56. Substitute:

$\dfrac{AB}{XY}=\dfrac{BC}{YZ}\to\dfrac{AB}{28}=\dfrac{8}{56}\qquad\text{cross multiply}\\\\56AB=(8)(28)\qquad\text{divide both sides by 56}\\\\AB=\dfrac{224}{56}\\\\\boxed{AB=4}$

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4 years ago