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max2010maxim [7]
3 years ago
13

A bag contains:

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
6 0

Answer:

3/50

Step-by-step explanation:

There are 5 + 4 + 2 + 6 + 3 = 20 marbles in the bag

P(draw a black) = 6/20 = 3/10

If the black marble is replaced, then there are 20 marbles in the bag again.

P(draw a blue) = 4/20 = 1/5

P(draw a black and blue with replacement) = (3/10)(1/5) = 3/50

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Answer:

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Step-by-step explanation:

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125 hrs

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2 years ago
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3 years ago
Jillian’s school is selling tickets for a play. The tickets cost $10.50 for adults and $3.75 for students. The ticket sales for
-Dominant- [34]

Answer:

168

Step-by-step explanation:

The first equation given is 0.50 a +3.75 b= 2071.50

Where a is number of adult tickets and b is number of student tickets

It is also given that 82 students attended, so we can put "82" in place of "b" and then solve the equation for a:

10.50a+3.75b=2071.50\\10.50a+3.75(82)=2071.50\\10.50a+307.5=2071.50\\10.50a=2071.50-307.5\\10.50a=1764\\a=\frac{1764}{10.50}\\a=168

Hence, 168 adults attended

3 0
3 years ago
Read 2 more answers
Of the 40 students in a class, 21 don't like listening to the radio and 10 don't like watching TV.
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Answer:

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Step-by-step explanation:

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2 years ago
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