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NemiM [27]
3 years ago
10

$30.50 - $17.79= Solve this problem in two diffrent ways (5th grade math)

Mathematics
1 answer:
jek_recluse [69]3 years ago
5 0
You could just subtract it or you could make it into a plus negative
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Which of the following is most likely the next step in the series? Image is above
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Answer:

A

Step-by-step explanation:

each picture has points on it first circle has 4 second circle has 3 third circle has 2 next will have 1 point

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What is the midpoint of the segment shown below ?
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A box contains different colored paper clips. The probability of drawing two red paper clips from the box without replacement is
ivann1987 [24]

Answer: 5/14 which is choice B

================================================

How I got this answer:

Define the following events

A = event of picking a red paper clip on the first selection

B = event of picking a red paper clip on the second drawing

Replacement is not made.

Now onto the probabilities for each

P(A) = 2/5 = 0.4 is given to us as this is simply the probability of picking red on the first try

P(A and B) = probability of both events A and B happeing simultaneously = 1/7

P(B|A) = probability event B occurs, given event A has occured

P(B|A) = probability of selecting red on second selection, given first selection is red (no replacement)

P(B|A) = P(A and B)/P(A)

P(B|A) = (1/7) / (2/5)

P(B|A) = (1/7) * (5/2)

P(B|A) = (1*5)/(7*2)

P(B|A) = 5/14

So if event A happens, then the chances of event B happening is 5/14

------------------

A more concrete example:

If we had 15 paperclips, and 6 of them were red, then

P(A) = (# of red)/(# total) = 6/15 = 2/5

P(B|A) = (# of red left)/(# total left) = (6-1)/(15-1) = 5/14

P(A and B) = P(A)*P(B|A) = (2/5)*(5/14) = 10/70 = 1/7

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4 years ago
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Answer:

8

Step-by-step explanation:

\frac{5}{8}y-12=-7 \\ \\ \frac{5}{8}y=5 \\ \\ y=8

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Determine the rate of change of the following coordinates
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Answer:

-4

Step-by-step explanation:

 

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