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3 years ago

If the marginal propensity to consume is 0.8, (a) what is the value of the multiplier?

1 answer:

7 0

Given the marginal propensity to consume (MPC), the miltiplier is given by

Multiplier = 1 / (1 - MPC)

Given that the marginal propensity to consume is 0.8, the multiplier is given by

Multiplier = 1 / (1 - 0.8) = 1 / 0.2 = 5

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Mrs. Thornton is teaching a 5th grade class. She is standing 15 meters in front of Hillary. Avisha is sitting 8 meters to Hillar

kykrilka [37]

15+8=23, i think is the answer

5 0

2 years ago

Will mark brainliest on the best answer and also explain how you got that answer.

natulia [17]

Answer:

i think it's about 20 im not 100 percent sure :/

Step-by-step explanation:

6 0

2 years ago

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Write the set of real numbers x less than 6 in set builder notation

maksim [4K]

Answer:

{x ∈ R: x<6}

Step-by-step explanation:

Given

x is a real number
x is less than 6

Required

Write the set using set builder notation

The very first thing to do is to list out the range of x, using inequalities;

x is less than 6 implies that -infiniti < x < 6

The next step is to translate this to set builder. This is done as follows

x ∈ R - > This means that x is a real number

x < 6 -> where x is less than 6.

Bringing these two together, it gives:

{x ∈ R: x<6}

Hence, the set of real numbers x less than 6 is equivalent to {x ∈ R: x<6} using set builder notation

6 0

2 years ago

One watering system needs about three times as long to complete a job as another warning system when both systems operate at the

algol13

Answer:

One watering system requires 36 minutes to complete the job alone while another watering system requires 12 minutes to complete the job alone.

Step-by-step explanation:

Given:

Both the system can complete the job = 9 minutes

We need find the time required by each system to do the job.

Solution:

Let the time required by another watering system to complete the job be 'x' mins.

Now given:

One watering system needs about three times as long to complete a job as another watering system.

Time required by one watering system = $3x$

Rate to complete the job by another watering system = $\frac{1}{x}\ job/min$

Rate to complete the job by One watering system = $\frac{1}{3x}\ job/min$

Rate at which both can complete the job = $\frac{1}{9}\ job/min$

So we can say that;

Rate at which both can complete the job is equal to sum of Rate to complete the job by another watering system and Rate to complete the job by One watering system.

framing in equation form we get;

$\frac{1}{x}+\frac{1}{3x}=\frac19$

Now taking LCM to make the denominator common we get;

$\frac{1\times3}{x\times 3}+\frac{1\times1}{3x\times1}=\frac19\\\\\frac{3}{3x}+\frac{1}{3x}=\frac19\\\\\frac{3+1}{3x}=\frac{1}{9}\\\\\frac{4}{3x}=\frac{1}{9}$

By Cross multiplication we get;

$4\times9 =3x\\\\3x =36$

Dividing both side by 3 we get;

$\frac{3x}{3}=\frac{36}{3}\\\\x=12\ min$

Time required by One watering system = $3x =3\times 12 =36\ min$

Hence One watering system requires 36 minutes to complete the job alone while another watering system requires 12 minutes to complete the job alone.

6 0

2 years ago

Ten subjects are being studied to test the effectiveness of itch relief for three types of medication: A, B, and C. Using a 10-p

yan [13]

Answer: Choice C

They should be blocked by pain resistance so the subjects are as similar as possible.

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Explanation:

The process of blocking in statistics is where we group up people in blocks, and each block is determined by a characteristic of some sort. In this case, we're grouping people up by pain resistance level. Those very resistant to pain will be in one group, while those who easily feel pain will be in another block, and so on. It might be effective to have a pain scale and sort people by that.

Blocking is done so that we eliminate unwanted variability. We are testing the effectiveness of the itching cream, so all we care about is if the itch reduces or not. We aren't worried about the levels of pain. However, it says that "Previous studies have shown the effects of treatment may vary based on a subject's pain resistance". So we group up the people by pain tolerance to help eliminate the variability of pain tolerance levels.

This is why choice C is the final answer.

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Extra info:

Choice A is false because a person's name doesn't have anything to do with if the treatment works or not.
Choice B is false because we weren't given any info to indicate it being true. It may be true, but we simply don't have enough info to confirm it.
Choice C is false for similar reasons as choice B.

6 0

2 years ago

Read 2 more answers