3 years ago

Can someone help me?

Mathematics

1 answer:

OverLord2011 [107]3 years ago

8 0

Answer:

Step-by-step explanation:

180-90-38=52

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Solve for x <br> X= 6<br> X=15<br> X=30<br> X=90

Natalija [7]

Answer:

x=30

Step-by-step explanation:

4x+2x=180

6x=180

x=30

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2 years ago

Daniel had 7 3/5 qt of strawberries.He used 1/2of that amount to make jam . How many quarts did he have left?

Georgia [21]

Answer:

3 4/5

Step-by-step explanation:

7 3/5=38/5

38/5 divided by 2 = 19/5

19/5=3 4/5

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3 years ago

Alex sold wrapping paper rolls (r) as part of a school fundraiser. He earned a total of 156 reward points from his sales. Using

Eva8 [605]

Answer:

Step-by-step explanation:

Alex earned 156 reward points for selling wrapping paper rolls.

Using the given equation

3r = 156

r = 156/3

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Alex sold 52 wrapping paper rolls

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3 years ago

The arrival time of a professor to her office is uniformly distributed in the interval between 8 and 9 A.M. Find the probability

NeTakaya

Answer:

0.025

Step-by-step explanation:

Given that the arrival time of a professor to her office is uniformly distributed in the interval between 8 and 9 A.M.

If the professor did not arrive till 8.20 he will arrive between 8.21 and 8.40

Hence probability for arriving after 8.20 is 1/40

Prob he arrives at exactly 8.21 is 1/60

To find the probability that professor will arrive in the next minute given that she has not arrived by 8: 20.

= Prob that the professor arrives at 8.21/Prob he has not arrived by 8.20

This is conditional probability and hence

= $P(professor arrives at 8.21)/P(professor arrives after 8.20)\\= \frac{\frac{1}{60} }{\frac{40}{60} } \\=\frac{1}{40} \\=0.025$

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What is the sign of the product (3)(–3)(–2)(4)

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Answer:

Step-by-step explanation:

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