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Paraphin [41]
2 years ago
10

A pair of similar figures is given below. (Note: the figures are not drawn to scale.)

Mathematics
1 answer:
Umnica [9.8K]2 years ago
4 0

Answer:

320 ....................

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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
tankabanditka [31]

Answer:

  • 273 mL of 5%
  • 117 mL of 15%

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.

7 0
3 years ago
Simplify these expressions<br> 2a + 5a <br> 12x-3x<br> 3p+2p-p
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Step-by-step explanation:

1.solution

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2.solution

=12x-3x

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3.solution

=3p+2p-p

=5p-p

=4p

Hope it helps you.

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2 years ago
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