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PolarNik [594]
3 years ago
9

Sam sold half of his coins from his collection and then bought nine more. He now has sixteen.

Mathematics
1 answer:
astraxan [27]3 years ago
6 0
X + 9 = 16

explanation : he bought nine more coins which made it 16. to find out how many coins he sold you would solve the equation then divide by 2.
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Vesna [10]
Seven Hundred Twenty is the correct answer.
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Alex has a block of wood that is in the shape of a prism with the dimensions shown. He cuts a 10-cm square hole through the cent
eimsori [14]

Answer:

Step-by-step explanation:

I think your question is missing key information and the one below is similar to yours. Hope it will find you well:

"Alex has a block of wood that is in the shape of a rectangular prism dimensions 70 cm by 50 cm by 30 cm.  He cuts a 10-cm square hole through the center of the prism. What is the volume of the remaining solid?

Here is my answer:

The volume of the rectangular prism: 70∗50∗30=105000 cm^{3}

The volume  in the center (intersection of “square holes”): 10∗10∗10=1000 cm^{3}

=> the volume of the remaining solid = The volume of the rectangular prism - The volume  in the center = 105000 - 1000 = 104000cm^{3}

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A and B are independent events.<br><br> P(A) = 0.40<br> P(B) = 0.30<br><br> What is P(A/B)
Lelechka [254]

Answer: Hello mate!

Two independent events, mean that the fact that, if the event A occurred, this has no effect in the probability of the event B to occur after.

For example, a coin flip.

The first result has no effect on the next result.

Then the notation P(A/B)  is the probability of the event A when the event B occurred before, but as we know, the fact that the event B occurred before has no effect in it; so:

P(A/B) = P(A) = 0.30

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3 years ago
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