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2 years ago

Which table shows a proportional relationship between a and b?

Mathematics

2 answers:

son4ous [18]2 years ago

8 0

Answer: option B is the correct answer.

Step-by-step explanation:

If two variables are proportional, a change in the value of one variable would cause a corresponding change in the value of the other variable. This means that both variables are related by a constant of proportionality, k.

Looking at the given tables,

For table A,

9/3 = 12/4 but not equal to 20/5

The relationship is not proportional.

For table B,

25/20 = 30/24 = 40/32 = 1.25

The relationship is proportional.

For table C,

12/4 = 15/5 but not equal to 24/6

The relationship is not proportional.

For table D,

4/3 = 16/12 but not equal to 9/6

The relationship is not proportional.

NARA [144]2 years ago

3 0

Answer:

Step-by-step explanation:

I first went through starting with A and took 3-9 (since it’s in the first box) I got -6 . You then divide 3 and 9 by -6 and report your answer.

I got 3/-6 = -.5 and And 9/-6 = -1.5

I then moved onto 4 and 12, I took the difference 4-12 and got -11.

4/-11 = -0.36 and 12 /-11 = -1.09

Since these answers are not the all the same I moved onto B

I took 20-25 = -5

20/-5 = -4 and 25/-5 = -5

Next numbers

24-30 = -6

24/6 = 4 and 30/6= 5

Next number

32-40= -8

32/-8 = -4

40/-8 = -5

( when putting this in fraction form it would be -4/-5 and that turns positive.) making this table proportioned unlike the other ones

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Step-by-step explanation:

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Hope this Helps

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3 years ago

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Answer:

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Step-by-step explanation:

Data:

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3 years ago

Which statement is true out of the value of money that you save increases over time , the value of money remains constant over t

Nataly_w [17]

None is necessarily true.

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In the US in the middle of the last century, inflation rates were consistently 2-3% per year and savings interest rates were perhaps 4-6%. Money saved actually increased in value, and the present value of money was greater than the future value. These days, inflation is perhaps a little lower, but savings interest rates are a lot lower, so savings does not outpace inflation the way it did. The truth or falsity of all these statements depends on where and when you're talking about.

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2 years ago

A circle has an area of approximately 615 square millimeters. What is the diameter of the circle

noname [10]

Answer:

When using the given information, the diameter of the circle is going to be 28 mL.

Step-by-step explanation:

First, we need to know the formula for finding the area of a circle.

$Area=r^2\pi$

Now, we need to rearrange the formula so we can find the radius.

$Radius=\sqrt{\frac{A}{\pi} }$

Next, we plug in the given area into the equation.

$Radius=\sqrt{\frac{615}{\pi}}$

$Radius=\sqrt{196}$

$Radius=14$

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