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avanturin [10]
2 years ago
13

Does anyone know how to solve this The answer is B but can anyone explain why

Mathematics
1 answer:
Lana71 [14]2 years ago
6 0

Answer:

B. (0,-1)

Step-by-step explanation:

see.. i'm not rude.... :/

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Can you explain to me the answers in a and b?
Hoochie [10]

a. The constant of proportionality is k = 2

b. If Micah saves $150, his parents will give him $300

<h2>Explanation:</h2>

<h3>PART A.</h3>

From mathematics, we know that y varies directly as x or y is directly proportional to x if and only if:

y=kx for some nonzero constant k.

Here we know some facts:

  • For every $5 that Micah saves, his parents give him $10.

In other words:

Let y be the money his parents give him.

Let x be the money that Micah saves.

We \ know \ that: \\ y=kx \\ \\ \\ Solving \ for \ k: \\ \\ k=\frac{y}{x} \\ \\ k=\frac{10}{5} \\ \\ \boxed{k=2}

So,<em> the constant of proportionality is k = 2</em>

<h3>PART B.</h3>

In this case, we know that Micah saves $150. So we need to find the amount of his parents will give him. So what we know here is the value of x, because x represents the amount of money Micah saves. Therefore, by knowing x and k, we can calculate the value of y, which is the amount of money his parents will give him. Hence:

For \ x=150 \ and \ k=2: \\ \\ y=2(150) \\ \\ \boxed{y=300}

Finally, <em>if Micah saves $150, his parents will give him 300$</em>

<h2>Learn more:</h2>

Cost of pizzas: brainly.com/question/12878495

#LearnWithBrainly

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3 years ago
Pls help me asap!!!!
lesya692 [45]
I believe that it is C, mind you I could’ve got it wrong. It’s been awhile since I’ve done that kind of math.
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3 years ago
Some students reported how many pets they had. The dot plot shows the data collected: A dot plot is titled Students Pets and lab
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Answer:

A dot plot is similar to histogram wherein they show the frequency of data. In this kind of plot, instead of bars, dots are stacked on their corresponding bin. The bins here are the number of pets, while the dots are the students. So, the 2 dots above number 3 signifies that, there are two students with three pets. The answer is A.

Step-by-step explanation:

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Answer:

The system of equations representing the situation are

600a + 1200p = 15,000

a + p = 16

with solutions

p = 9

a = 7

Step-by-step explanation:

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3 years ago
Question 4 (2 points)
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Answer:

Step-by-step explanation: 64646464-444

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