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3 years ago

Bill paints murals. He recorded the total amount of white paint that he used for his murals each month in the table below.

Mathematics

2 answers:

inessss [21]3 years ago

8 0

Answer:

$\frac{8}{15}$ liters

Step-by-step explanation:

Bill paints murals. He recorded the total amount of white paint that he used for his murals each month in the table below.

March $1\frac{1}{4}$ liters of paint

April

May $\frac{4}{5}$ liters of paint.

In April Bill used $\frac{2}{3}$ of $\frac{4}{5}$

Therefore, he used in April

$\frac{2}{3}$ × $\frac{4}{5}$

= $\frac{8}{15}$ liters

In April Bill used $\frac{8}{15}$ liters of white paint.

kicyunya [14]3 years ago

6 0

Answer:

Step-by-step explanation:

2/3x4/5=8/15

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Answer:

a) P [X ≥ 30 ] = 0,8413 or 84,13%

b) P [X < 24] = 0,0228 or 2,28 %

c) P [ 24 < X < 48 ] = 0,9544 or 95,44%

Step-by-step explanation:

z = ( X - μ₀ )/σ

μ₀ the mean ( average no. of months that an employee stay in a factory)

σ standard deviation

a) P [X ≥ 30 ] = 1 - P [X < 30 ]

P [X < 30 ]

We look for z (score)

z = ( X - μ₀ )/σ ⇒ z = 30 - 36 / 6

z = - 1

From z table we get for -1

P [X < 30 ] = 0,1587

And

P [X ≥ 30 ] = 1 - P [X < 30 ] ⇒ P [X ≥ 30 ] = 1 - 0,1587

P [X ≥ 30 ] = 0,8413 or 84,13%

b) P [X < 24]

z (score) = ( 24 - 36 ) / 6

z( score) = -2

And from z table we get:

P [X < 24] = 0,0228 or 2,28 %

c) P [ 24 < X < 48 ] is P[X ≤ 48] - P[X ≤ 24]

P [X < 48]

s (score) = 48 - 36 / 6 ⇒ z = 2

P [X < 48] = 0,9772

Then

P [ 24 < X < 48 ] = 0,9772 - 0,0228

P [ 24 < X < 48 ] = 0,9544 or 95,44%

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Answer:

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Step-by-step explanation:

340/5=68

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For this, we are just going to plug in -9 for every x and then solve the equation:

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Now we know that q(-9) is equal to 566.

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Answer:

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