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Feliz [49]
2 years ago
11

A store buys 13 sweaters for $52 and sells them for $377. How much profit does the store make per sweater?

Mathematics
2 answers:
Fed [463]2 years ago
8 0
$25 because 13 divided by 52 is $4 so $4 per sweater and $377 dived by 13 is $29 per sweater
elena-s [515]2 years ago
5 0

Answer:

25

Step-by-step explanation:

So, 13 sweaters cost $52, so 1 sweater costs $4. If he sells the 13 sweaters for $377, you will need to do 377 divided by 13, and that is 29. The last step you have to do is find the difference (subtraction) of 4 and 29. So, 29-4=25. Therefore, The profit the store made was $25 per sweater. Hoped that helped!!

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The original number is 3.

I actually began with the guess-and-check method, but seeing as that won't always work, let's go over the formal way. To get the original number, you first need to determine how many times the number was squared.

To make it simple, let's use x to focus on the exponents. The number was squared 3 times, so x^2, x^2, x^2. Basically, you need to multiply. 2 * 2 * 2 = 8. So, now find the 8th root of 6561 (depending on the calculator, you can just input it). You should come up with 3. Let me know if this part confuses you.

To find the next 2 numbers, you just need to continue the pattern.

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To my knowledge, which means this could be wrong, they're both perfect squares. Since the number to get them both were whole numbers, they should both have a square root that equals a whole number.

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