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3 years ago

Is the ratio orange to blue 3 to 4 equivalent to 12 to 9

Mathematics

1 answer:

tamaranim1 [39]3 years ago

3 0

No If it was 4 to 3 then yes but 4 can't be multiplied by anything to equal 9

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There will be a circular patio with a diameter of 7 metres. Greg is going to put a tiled edge around the patio. What is the circ

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Answer:

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Step-by-step explanation:

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3 years ago

Solve the system.<br> 3x + 4y = 7<br> 2x-y=1<br> What does x and y equal

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Answer:

x=1 y=1

Step-by-step explanation:

Let's use the elimination method.
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(add both equations together)
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2 years ago

According to records in a large hospital, the birth weights of newborns have a symmetric and bell-shaped relative frequency dist

Kamila [148]

Answer:

15.9% of babies are born with birth weight under 6.3 pounds.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 6.8 pounds

Standard Deviation, σ = 0.5

We are given that the distribution of birth weights is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(birth weight under 6.3 pounds)

P(x < 6.3)

$P( x < 6.3) = P( z < \displaystyle\frac{6.3 - 6.8}{0.5}) = P(z < -1)$

Calculation the value from standard normal z table, we have,

$P(x < -1) = 0.159 = 15.9\%$

15.9% of babies are born with birth weight under 6.3 pounds.

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2 years ago