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2 years ago

Solve for the variable 3/6 = x/121

Mathematics

2 answers:

exis [7]2 years ago

8 0

Answer:

$\boxed{x=\dfrac{121}{2}\to x=60.5}$

Step-by-step explanation:

$\dfrac{3}{6}=\dfrac{x}{121}\qquad\text{simplify}\ \dfrac{3}{6}=\dfrac{3:3}{6:3}=\dfrac{1}{2}\\\\\dfrac{1}{2}=\dfrac{x}{121}\qquad\text{cross multiply}\\\\2x=121\qquad\text{divide both sides by 2}\\\\x=\dfrac{121}{2}$

katrin2010 [14]2 years ago

5 0

Answer:

60.5 =x

Step-by-step explanation:

3/6 = x/121

We can use cross products

3*121 = 6*x

363 = 6x

Divide by 6

363/6 = 6x/6

60.5 =x

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A consumer advocacy group wants to determine whether there is a difference between the proportions of the two leading automobile

podryga [215]

Answer:

The answer is "0.3206".

Step-by-step explanation:

$H_0: p_1 = p_2\\\\H_a: p_1 \neq p_2\\\\\hat{p_1} = \frac{X_1}{N_1} = \frac{53}{400} = 0.1325\\\\\hat{p_1}= \frac{X_2}{N_2} = \frac{78}{500}= 0.156\\\\\hat{p} = \frac{(X_1 + X_2)}{(N_1 + N_2)} = \frac{(53+78)}{(400+500)} = 0.1456$

Testing statistic:

$z = \frac{(\hat{p_1}- \hat{p_2})}{\sqrt{(\hat{p} \times (1-\hat{p}) \times (\frac{1}{N_1} + \frac{1}{N_2}))}}$

$=\frac{(0.1325-0.156)}{\sqrt{(0.1456\times (1-0.1456)\times (\frac{1}{400} + \frac{1}{500}))}}\\\\ = -0.99$

Calculating the P-value Approach

$\text{P-value}= 0.3206$

7 0

2 years ago

<img src="https://tex.z-dn.net/?f=-a-%5Cfrac%7B7%7D%7B8%7D%20a" id="TexFormula1" title="-a-\frac{7}{8} a" alt="-a-\frac{7}{8} a"

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Step-by-step explanation:

-a-7a/8

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3 years ago

Read 2 more answers

Write4×4×4×4 in index

JulijaS [17]

Answer:

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Step-by-step explanation:

the answer is 4 to the power of 4

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2 years ago

How could you model 5 students sharing 4 bags of popcorn equally? How much will each student get?

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3 years ago

An urn contains 8 pink and 5 red balls. Six balls arerandomly drawn from the urn in succession, with replacement.That is, after

slega [8]

0.088

Step-by-step explanation:

The total number of balls in the urn is;

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Learn More:

For more on probabilities check out;

brainly.com/question/11248705

brainly.com/question/1177537

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3 years ago