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sveta [45]
2 years ago
13

Mr. Singer's choir is going to New York City for a choir competition. He wants them to look their best, so he buys new music fol

ders for all of the members. Each music folder costs $7.99. If Mr. Singer buys 23 music folders, how much does he spend?
Mathematics
1 answer:
Komok [63]2 years ago
8 0

Answer: 183.77

Step-by-step explanation:

23*7.99 =183.77

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Write the prime factorization for 65,169
posledela

Let's try to find some primes that divide this number.

The number is not divisible by 2, because it is odd.

The number is divisible by 3 though, because the sum of its digits is:

6+5+1+6+9=27=3\cdot 9

So, we can divide the number by 3 and keep going with the factorization:

65169\div 3 = 21723

This number is again divisible by 3, because

2+1+7+2+3 = 15 = 3\cdot 5

We have

21723\div 3 = 7241

This number is no longer divisible by 3. Let's go on looking for primes that divide it: 5 doesn't because the number doesn't end in 0 nor 5. This number is not divisible by 7 or 11 either (just try). It is divisible by 13 though: we have

7241\div 13 = 557

And 557 is prime, so we're done. This means that the prime factorization of 65169 is

3^2\cdot 13 \cdot 557

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Answer:

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