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lawyer [7]
3 years ago
14

I need help with this geometry

Mathematics
1 answer:
Marysya12 [62]3 years ago
5 0
2x - 3y = 9
- 3y = -2x + 9
y = (-2x + 9)/-3

slope = -2
Since the slope is negative the line passes through quadrants 2 and 4
Therefore the answer is b.
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a chef is going to use a mixture of two brands of Italian dressing. The first brand contains 5% vinegar and the second Brian con
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Answer:

  • 273 mL of 5%
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Step-by-step explanation:

Let q represent the quantity of 15% dressing used. Then the amount of 5% dressing is (390 -q). The amount of vinegar in the mix is ...

  0.15q + 0.05(390 -q) = 0.08(390)

  0.10q = 31.2 -19.5 = 11.7 . . . . . . subtract 0.05(390) and simplify

  q = 117 . . . . . . . . . . . . . . . . . . multiply by 10

  390-q = 273

The chef should use 273 mL of the first brand (5% vinegar) and 117 mL of the second brand (15% vinegar).

__

<em>Additional comment</em>

You may have noticed that the value of q is (0.08 -0.05)/(0.10 -0.05)×390. The fraction of the mix that is the highest contributor is the ratio of the difference between the mix value and least contributor, divided by the difference between the contributors: (8-5)/(15-5) = 3/10, the fraction that is 15% vinegar. This is the generic solution to mixture problems.

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3 years ago
Tara wants to put a white fence aroung the yard including the garden. Write an
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The perimeter of a rectangle is 2L + 2W, where L and W are the length and width, respectively. The dimensions of the garden are given, 6 x 12 ft.

 

The amount of fencing needed is 2(6) + 2(12) = 12 + 24 = 36 ft of fencing

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6 couples couldn't fit in a limo that holds 10 people.
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fefsf

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eff?

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Read 2 more answers
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