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Galina-37 [17]
3 years ago
10

A plane makes a return journey across the Atlantic Ocean, a distance

Mathematics
1 answer:
Mice21 [21]3 years ago
3 0

Answer:

Below in bold.

Step-by-step explanation:

6 hours 12 minutes = 6.2 hours

7 hours 18 minutes = 7.3 hours.

Average speed = distance / time

So for West to East,  average speed =  3800 / 6.2 = 612.9 km/hour.

- and  for East to West,  average speed =  3800 / 7.3  = 520.5  km/hour.

These values are correct to the nearest tenth.

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PLEASE HELP ME WITH THIS
miv72 [106K]

Answer:

  35/132

Step-by-step explanation:

The probability of selecting a boy for president is 7/12, the ratio of the number of boys to the number of candidates. Then the probability of selecting a girl for vice president is 5/11, the ratio of the number of girls to the remaining number of candidates. The joint probability is ...

  (7/12)(5/11) = 35/132 . . . P(b=P&g=VP)

__

We can also look at this another way.

The number of ways two candidates can be selected from 12 is 12P2 = 132. The number of ways that the first can be a boy and the second can be a girl is (7)(5) = 35. Then the probability of a (BG) pair from the 12 candidates is 35/132.

_____

<em>Additional comment</em>

These numbers assume that selection is random and all possibilities are equally-likely. That is unlikely to be the case in an election.

7 0
3 years ago
How many diagonals does a regualt hexagon have?
jekas [21]

Answer: 9 diagonals

Step-by-step explanation:

6 0
2 years ago
Attachment look at it​
stiks02 [169]
4J-7S
21/7=3

multiply both sides by 3
12J-21S
12 cups of juice to make 21 cups of soda
4 0
3 years ago
Help with 4 and 5!!!!!
Mazyrski [523]
I can't see it really
7 0
4 years ago
If Janet buys a bag for $45.50 and the tax is 5% and she has $60, will she have enough money to buy a $12 movie ticket?
sertanlavr [38]

In this equation, we're trying to find if she has enough money to buy a $12 movie ticket.

We know that she buys a bag for $45.50, with a 5% tax rate. Let's calculate the total cost of the bag after tax.

45.50 · 1.05 = 47.775

Round to the nearest hundredths place

$47.78

She spent $47.78 on the bag.

She has $60, so calculate how much money she has left.

60 - 47.78 = 12.22

She has $12.22 left to spend.

This means that she has enough money to buy the movie ticket.

She would also have 22 cents left to spare.

Answer:

Yes, she has enough money to buy the movie ticket

8 0
3 years ago
Read 2 more answers
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