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3 years ago

I would love your guys help!! ASAP!!

Mathematics

1 answer:

sweet [91]3 years ago

6 0

9514 1404 393

Answer:

3/2
it is the ratio of oil to vinegar in the dressing
y = 3/2x

Step-by-step explanation:

1. The table can be filled in like this:

(x, y)
(0, 0)
(2, 3)
(4, 6)
(6, 9)

The constant of proportionality is the ratio of y to x:

k = 3/2

2. The meaning of the constant of proportionality is just what it is defined to mean: the ratio of oil to vinegar in the dressing.

3. The equation is y=kx, where k is the value in part 1:

y = (3/2)x

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Nuetrik [128]

Answer:

option (D) 16.5

Step-by-step explanation:

Data provided:

Sleep time of , X = 15.9 is at the 10th percentile

Standard deviation, σ = 0.5 hour

also,

10th percentile of normal distribution is

Z = F⁻¹(0.10)

Z = - 1.28 (Using Standard Normal distribution)

Now,

$\\Z=\frac{X-\mu}{\sigma}$

X = μ + ( σ × Z )

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on substituting the respective values, we get

μ = 15.9 - 0.5 × (-1.28)

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Hence, the correct answer is option (D) 16.5

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