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Jobisdone [24]
3 years ago
5

Solve the proportion: 35/8 = 105/x

Mathematics
1 answer:
dangina [55]3 years ago
6 0

Answer:

x=24

Step-by-step explanation:

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Which expression shows the result of applying the distributive property to 3 (1/5x - 1/7)
Ivan

Hi,

3(1/5x - 1/7)

= 3/5x - 3/7

B

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3 0
2 years ago
What is the value of this expression when<br> d= 47 and f = 3?<br> 6 (d - f) +f
agasfer [191]

Answer:

267

Step-by-step explanation:

We are given the expression:  6 (d - f) +f

The value of the expression when d= 47 and f = 3 is :

6 (47 - 3) +3 = 6×(44) + 3 = 264 + 3 = 267

=267

7 0
2 years ago
In 2014, 85 percent of households in the United States had a computer. For a randomly selected sample of 200 households in 2014,
DochEvi [55]

Answer:

The mean of C is 170 households

The standard deviation of C, is approximately 5 households

Step-by-step explanation:

The given parameters are;

The percentage of households in the United States that had a computer in 2014 = 85%

The size of the randomly selected sample in 2014, n = 200

The random variable representing the number of households that had a computer = C

Therefore, we have;

The probability of a household having a computer P = 85/100 = 0.85

Let

Therefore;

The mean (expected) number in the sample, μₓ, = E(x) = n × P is given as follows;

μₓ = 200 × 0.85 = 170

The mean of C = μₓ = 170

The variance, σ² = n × P × (1 - P) = 200 × 0.85 × (1 - 0.85) = 25.5

Therefore;

The standard deviation, σ = √(σ²) = √(25.5) ≈ 5.05

The standard deviation of C, σ ≈ 5 households (we round (down) to the nearest whole number)

7 0
3 years ago
Read 2 more answers
What is equivalent to 1/2 (6x + 12 + 3)? Is it A. 18x + 36 - 9 B. 2x + 4 - 1 C. 2x + 12 - 3 D. 18x + 12 - 3
Kobotan [32]
Answer choice A is correct
6 0
3 years ago
Mia has a piece of ribbon that is 30.5 yards long. The length is just enough ribbon to make 5 bows that are the same size. How l
slava [35]
30.5/5= 6.1 yards per ribbon 
7 0
3 years ago
Read 2 more answers
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