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Monica [59]
3 years ago
13

Two stores are having sales on the same shirts. The sale at Store 1 is "2 shirts for $22" and the sale at Store 2 is "Each $12.9

9 shirt is 10% off". A: Explain how much will you save by buying at Store 1. B: If Store 3 has shirts originally prices at $20.98 on sale for 55% off, does it have a better deal then the other stores?
Mathematics
1 answer:
Sholpan [36]3 years ago
8 0
The first store, or store1, has the best deal. each shirt is basically $11 (when you buy 2), where store 2 sells each shirt (i already put the discount) at $11.70. basically twelve dollars.
You would save $1.40 if you buy from store 1. 

B: no it doesn't, store 3 sells its shirts at $11.53 each.


i hope this helps. <span>(○^▽^○)</span>
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I'm trying to figure this out, but I can't get it
Katen [24]

Answer:

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2 years ago
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a slitter assembly contains 48 blades five blades are selected at random and evaluated each day for sharpness if any dull blade
son4ous [18]

Answer:

P(at least 1 dull blade)=0.7068

Step-by-step explanation:

I hope this helps.

This is what it's called dependent event probability, with the added condition that at least 1 out of 5 blades picked is dull, because from your selection of 5, you only need one defective to decide on replacing all.

So if you look at this from another perspective, you have only one event that makes it so you don't change the blades: that 5 out 5 blades picked are sharp. You also know that the probability of changing the blades plus the probability of not changing them is equal to 100%, because that involves all the events possible.

P(at least 1 dull blade out of 5)+Probability(no dull blades out of 5)=1

P(at least 1 dull blade)=1-P(no dull blades)

But the event of picking one blade is dependent of the previous picking, meaning there is no chance of picking the same blade twice.

So you have 38/48 on getting a sharp one on your first pick, then 37/47 (since you remove 1 sharp from the possibilities, and 1 from the whole lot), and so on.

Also since are consecutive events, you need to multiply the events.

The probability that the assembly is replaced the first day is:

P(at least 1 dull blade)=1-P(no dull blades)

P(at least 1 dull blade)=1-(\frac{38}{48}* \frac{37}{47} *\frac{36}{46}*\frac{35}{45}*\frac{34}{44})

P(at least 1 dull blade)=1-0.2931

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5 0
3 years ago
Joe is finding the length of a rectangular prism. The volume of the prism is 204 ft3. The width is 3.5 ft, and the height is 5 f
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Answer:

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Step-by-step explanation:

Let's observe Joe's steps:

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That's how we know that Joe added instead of multiplied, as he should have done. Thus, the answer is B.

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FromTheMoon [43]

Answer:

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Step-by-step explanation:

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