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Juli2301 [7.4K]
3 years ago
11

Can you guys help me with these questions?

Mathematics
1 answer:
umka21 [38]3 years ago
3 0

Answer:

13. 23 boat rides; 22 are full, and the first one has 301 passengers.

12. $11,067.50

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dimulka [17.4K]
It decreased $7 in the last 2 days
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32 is 40% of what number? Enter your answer in the box.
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32 is 40% of 80...…....
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65006500 is 666 thousands plus 555 hundreds.
madam [21]

Answer:

Choice C

Step-by-step explanation:

5 Thousand  + 15 hundred = 6500

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4.) A bag contains 10 red marbles and 5 blue marbles. You randomly select 3 marbles from the bag. What is
sesenic [268]

Answer:

a) 1/27

b) 2/91

Step-by-step explanation:

A bag contains 10 red marbles and 5 blue marbles (15 marbles in total). You randomly select 3 marbles from the bag.

a) You replace each marble before selecting the next one.

The probability of selecting one blue marble is

\dfrac{5}{15}=\dfrac{1}{3},

then the probability that all 3 marbles are blue is

\dfrac{1}{3}\times \dfrac{1}{3}\times \dfrac{1}{3}=\dfrac{1}{27}

b) You do not replace each marble before selecting the next one. Each time the number of blue marbles decreases by 1 and the total number of marbles decreases by 1 too. So the probability that all 3 marbles are blue is

\dfrac{5}{15}\times \dfrac{4}{14}\times \dfrac{3}{13}=\dfrac{2}{91}

7 0
3 years ago
Please help me with this homework
yulyashka [42]
B= -42 C= -38
So the difference going up to positive is 4 and the difference going down in negative is -4.
5 0
2 years ago
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