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Usimov [2.4K]
3 years ago
15

a sample of 144 firecrackers contained 4 duds. how many duds would you expect in a sample of 1584 firecrackers?

Mathematics
1 answer:
Semenov [28]3 years ago
7 0
396 duds in 1,584 fireworks all together. Divide 1,584 by 4.
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(2+2)/2x4+16-10x2/2x3=x
vovikov84 [41]
(2+2):2x4:16-10x2:2x3=x
4:2x4+16-10x1x3=x
8+16-30=x
-6=x
x=-6

This signing : signifícate division


I help the my answer can help you
5 0
3 years ago
What is 3÷1/4 please tell me
Lady bird [3.3K]
The answer to your question
is 12
7 0
3 years ago
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What is the slope of a<br> line with endpoints at<br> (3, 4) and (2, 5)?
Lynna [10]
Slope=-1 .................
3 0
3 years ago
Read 2 more answers
9(x - 11) = 9<br> I can’t find the answer
Sphinxa [80]

Step-by-step explanation:

9(x - 11) = 9

x - 11 = 9 / 9

x - 11 = 1

x = 1 + 11

x = 12

Hope it will help :)

6 0
3 years ago
Monyne Phillips three coins. What is the probability that the first second and third Cornwall in the same way (either all heads
nasty-shy [4]

Answer:

1 in 8 chance.

Step-by-step explanation:

When a coin flips is has two outcomes: heads or tails, obviously.

Whenever you have a 50/50 probability, in this case a coin, every time you add another coin the amount of outcomes squares, or multiplies by the number of outcomes, and since we are using a coin, two. To reiterate, say we were using a die, a die is a cube, a six sided shape, so there are six outcomes. The chances of getting all sixes with one die is 1 in 6. Add another die and try to get all sixes, the chances become 1 in 36. We got this by multiplying our out comes by our outcomes

1 coin: 2 outcomes

2 coins: 4 outcomes

3 coins: 8 outcomes

Another thing:

Don't be fooled by questions being specific by saying "all heads" or "all tails"...

This is a wording trick, no matter the outcome, the chances will always be equal.

Good luck :)

8 0
3 years ago
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