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Aliun [14]
3 years ago
5

A factory that produces piano keys churned out 545,952 keys in 12 months. A piano requires 88 keys. How many pianos can be produ

ced using the keys from the first 3 months?
Mathematics
1 answer:
Margarita [4]3 years ago
7 0
Answer is 517
545,952 divided by 12=45,496
45,496 divided by 88= 517
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37 times 45 divide by 2

Step-by-step explanation:

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3 years ago
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Answer:

The addition rule for probabilities describes two formulas, one for the probability for either of two mutually exclusive events happening and the other for the probability of two non-mutually exclusive events happening.

The first formula is just the sum of the probabilities of the two events. The second formula is the sum of the probabilities of the two events minus the probability that both will occur.

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The cost of renting a boat for different
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Step-by-step explanation:

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3 years ago
QUESTION 3 Toyota provides an option of a sunroof and side airbag package for its Corolla model. This package costs $1400. Assum
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Answer:

n=601

Step-by-step explanation:

Formula used:

n=z(\frac{\alpha }{2})^2\frac{p(1-p) }{E^2}

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n=z(\frac{\alpha }{2})^2\frac{p(1-p) }{E^2}

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As there is no previous estimate for p

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Here on using the table

z(\frac{\alpha }{2}) =1.959963985

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6 0
2 years ago
which is a pair of dependent events? spinning a spinner one time and then spinning it a second time flipping a quarter and then
Sphinxa [80]
<h2><u>Answer and explanation:</u></h2>

Two events are said to be dependent on each other, if the outcome of the first thing affects the outcome of the second thing in such a way that the probability changes.

Here, the right answer will be = removing a marble from a bag, not putting it back, and then removing a second marble.

Explanation:

Lets suppose there were 10 marbles in the bag at the first place. Now, you removed one marble and did not put it back. So, remaining marbles will be 9. Now, if again you choose a marble, you have 9 marbles to choose from. We can see that probability changes with the event that occurred at first place.

So, this is the right answer.

Rest options are simultaneous one. They are not dependent in any way.

7 0
3 years ago
Read 2 more answers
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