Please help if you can. Mandy used the input and output in this table to write ratios. She concluded that because they are not all equivalent, this is not a proportional relationship. Is she correct? Explain.

Answers

Answer 1

Answer: Yes because proportional is another word for equivalent for example x times 5 = y would be the same as y divided by 5 = x hope this helped

Answer 2

Answer:

Answer:

he last ratio is written incorrectly.

Mandy reversed the input and output in the numerator and denominator.

The correct ratio is 50/10.

The relationship is proportional.

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The quadrilaterals JkLM and PQRS are similar.find the length x of QR.

Answers

Two quadrilaterals are similar if corresponding sides taken in the same sequence (even if clockwise for one quadriateral and counterclockwise for the other) are proportional and corresponding angles taken in the same sequence are equal in measure.
If the quadrilaterals JKLM and PQRS are similar, then

$(JK)/(PQ) = (KL)/(QR) = (LM)/(RS) = (JM)/(PS)$ .
Hence
$(4)/(QR) = (3)/(4.8) = (5)/(8) = (3)/(4.8)$ and
$QR= (4\cdot 8)/(5) =6.4$ .

3/4.8=4/x
3x=19.2
x=6.4

If the sales tax is 3% what is the cost of a pair of shoes with a price of $55?

Answers

$56.65

55(.03)= 1.65
1.65+55= 56.65

3% of 55 is 1.65
you add this to the original cost to get &56.65

Which is the point where sides meet in a polygon

Answers

The point where sides meet in a polygon is called the vertex.

It is called a vertex, or a corner.

If a scale is 1:250,000 and the distance is 8.5cm on the map what's the actual distance

Answers

8.5cm · 250,000 = 2,125,000cm

1m = 100cm therefore 1cm = 0.01m

2,125,000cm = 2,125,000 · 0.01 = 21,250m

1km = 1,000m therefore 1m = 0.001km

21,250m = 21,250 · 0.001km = 21.25km

Answer: 21,250m = 21,25km

Given a normal distribution with a mean of 50 and a standard deviation of 4, 5% of the values are less than what value?

Answers

Answer:

15.5

Step-by-step explanation:

Final answer:

In a normal distribution with a mean of 50 and standard deviation of 4, 5% of the values would be less than 43.42.

Explanation:

In a normal distribution, 5% of the values being less than a certain value corresponds to a z-score of -1.645. The formula for a z-score is Z = (X - μ)/σ, where Z is the z-score, X is the value in the dataset, μ is the mean, and σ is the standard deviation.

To solve for X, we use the formula X = Z*σ + μ. Substituting the values for Z (-1.645), σ (4), and μ (50), it gives:

X = (-1.645)*4 + 50 = 43.42

So, in a normal distribution with a mean of 50 and a standard deviation of 4, approximately 5% of the values would be less than 43.42.

Learn more about Normal Distribution here:

brainly.com/question/30390016

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Solve each equation for the given variable a-2b=-10 for b

Answers

a-2b=-10
add 2b on both sides
a=2b-10
add 10 to both sides
a+10=2b
divide both sides by 2
a/2+10/2=a/2+5=b
b=5+a/2