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3 years ago

What is the answer to 4(x - 5) = 44

Mathematics

2 answers:

kogti [31]3 years ago

8 0

X=16 I hope this helps

r-ruslan [8.4K]3 years ago

4 0

Answer:

x = 16

Step-by-step explanation:

Step 1: Write equation

4(x - 5) = 44

Step 2: Solve for x

Distribute 4: 4x - 20 = 44

Add 20 on both sides: 4x = 64

Divide 4 on both sides: x = 16

Step 3: Check

Plug in x to verify it's a solution.

4(16 - 5) = 44

4(11) = 44

44 = 44

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Answer:

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Step-by-step explanation:

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The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past

galina1969 [7]

Complete Question

The complete question is shown on the uploaded image

Answer:

1 ) The correct option B

2) The correct option is C

3) The correct option is C

4) The correct option is C

Step-by-step explanation:

From the question we are told that

The proportion that own a cell phone is $p = 0.90$

The sample size is n = 15

Generally the appropriate distribution for X is mathematically represented as

$X \ is \ B( n , p )$

$X \ is \ B( 15 , 0.90 )$

Generally the number students that own a cell phone in a simple random sample of 15 students is mathematically represented as

$\mu = n * p$

$\mu = 15 * 0.90$

$\mu = 13.5$

Generally the standard deviation of the number of students who own a cell phone in a simple random sample of 15 students is mathematically represented as

$\sigma = \sqrt{ n * p * q }$

Where q is mathematically evaluated as

$q = 1- p$

$q = 1- 0.90$

$q = 0.10$

$\sigma = \sqrt{ 15 * 0.90 * 0.10 }$

$\sigma = 1.16$

Generally the probability that all students in a simple random sample of 15 students own a cell phone is mathematically represented as

$P(X = 15) = \left 15} \atop {}} \right.C_{15} * p^{15} * q^{15 - 15}$

$P(X = 15) = \left 15} \atop {}} \right.C_{15} * (0.90)^{15} * (0.10 )^{15 - 15}$

From the combination calculator is $\left 15} \atop {}} \right.C_{15} = 1$

$P(X = 15) = 1 * 0.205891 * 1$

$P(X = 15) = 0.206$

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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nexus9112 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

Top: 20 * 17 = 340

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Back rectangle: 8 * 20 = 160

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3 years ago