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inysia [295]
3 years ago
12

For a recent project, a teacher purchased 250 pieces of red construction paper and 114 pieces of blue construction paper. What i

s the ratio of red to blue? a. 57:125 c. 125:182 b. 125:57 d. 182:125
Mathematics
2 answers:
Lisa [10]3 years ago
7 0
The answer is b because you can divide them by 2 to get the answer<span />
Mrac [35]3 years ago
3 0

Answer the questions. When you have finished, submit this assignment to your teacher by the due date for full credit.

<span> <span><span> <span> Score </span> </span> <span> <span>   </span> </span> </span></span>

<span>1. A college newspaper, The College Spy, has a fixed production cost of $70 per edition and it costs 40¢ per copy to print and distribute.  The College Spy sells for 50¢ per copy.</span>

<span>a. What is the cost expression for the newspaper? (3 points)</span>

 

 

<span>b. What is the revenue expression for the newspaper? (3 points)</span>

 

 

<span>c. Put the cost and revenue expressions into an inequality that would represent a successful newspaper. (3 points)</span>

 

 

 

<span>d. How many copies should be sold to make a profit?  Show all work!  An answer with no work will receive 0 points. (5 points)</span>

 

 

 Answer the questions. When you have finished, submit this assignment to your teacher by the due date for full credit.

<span> <span><span> <span> Score </span> </span> <span> <span>   </span> </span> </span></span>

<span>1. A college newspaper, The College Spy, has a fixed production cost of $70 per edition and it costs 40¢ per copy to print and distribute.  The College Spy sells for 50¢ per copy.</span>

<span>a. What is the cost expression for the newspaper? (3 points)</span>

 

 

<span>b. What is the revenue expression for the newspaper? (3 points)</span>

 

 

<span>c. Put the cost and revenue expressions into an inequality that would represent a successful newspaper. (3 points)</span>

 

 

 

<span>d. How many copies should be sold to make a profit?  Show all work!  An answer with no work will receive 0 points. (5 points)</span>

 

 

 

 

 

 

 

<span>e. Now go back to your answer for d.  On every line of your solution write what property of math you would use to justify the transformation that occurred.  Here’s an example of an equation being solved with proper justification written off to the side:</span> <span>(4 points)</span>

 

 

 

 

<span>e. Now go back to your answer for d.  On every line of your solution write what property of math you would use to justify the transformation that occurred.  Here’s an example of an equation being solved with proper justification written off to the side:</span> (4 points)

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1. Find the perimeter: 2w + 2L

    2(4) = 8 + 2(5) = 10

     8 + 10 = 18 feet of fencing

2. multiply the cost per foot (10) by the number of feet (18)

    10*18 = 180

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Mariel brought 48 brownies to school for a class party. The class ate 5/6 of the brownies, and Mariel brought the rest home. How
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8

Step-by-step explanation:

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48 *5/6 = 40

There were 48 brownies originally

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Tell weather each equation has one, zero, or infinitely many solutions. -(2x + 2) - 1 = -x - (x + 3)
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PLEAS HELP ASAP Fill in the missing probabilities on your paper and then answer the questions below. Make sure to type the ZERO
nikitadnepr [17]

This question is solved using probability concepts. We derive the probabilities from the tree given in the exercise, and with this, added to the use of conditional probability, we get the desired probabilities.

The probabilities are:

P(A) = 0.7, P(A and B) = 0.14, P(B) = 0.26, P(A or B) = 0.82, P(not B given A) = 0.8

Conditional probability:

In this problem, conditional probability concepts are used, and for this, we have that:

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

P(A)

At the first node, we have that:

P(A) = 0.7

P(A and B):

From the first node, we have that P(A) = 0.7

From A to B, there is 0.2, which means that P(B|A) = 0.2

Thus

P(B|A) = \frac{P(A \cap B)}{P(A)}

0.2 = \frac{P(A \cap B)}{0.7}

P(A \cap B) = 0.7*0.2 = 0.14

So

P(A and B) = 0.14

P(B):

P(B) = P(A and B) + P(not A and B).

P(not A) = 0.3, P(B|not A) = 0.4, then:

P(not A and B) = 0.3*0.4 = 0.12

P(B) = 0.14 + 0.12 = 0.26

P(A or B)

We have that:

P(A \cup B) = P(A) + P(B) - P(A \cap B)

We already have the three of them, so just replace:

P(A \cup B) = 0.7 + 0.26 - 0.14 = 0.82

Then

P(A or B) = 0.82

P(not B given A)

If A happens, either B happens, or it does not. That is:

P(B|A) + P(not B|A) = 1

Since P(B|A) = 0.2

P(not B|A) = 1 - 0.2 = 0.8

Then

P(not B given A) = 0.8

To take another look at conditional probability, you can check brainly.com/question/24161830

4 0
2 years ago
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