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hjlf
3 years ago
15

Which of the following is a PRIME factor of 180? A. 7 B. 4 C. 5 D. 9

Mathematics
2 answers:
QveST [7]3 years ago
6 0

Answer:

5

Step-by-step explanation:

4 and 9 are composite numbers, so that automatically rules them out. The last two Prime numbers are 7 & 5, right?

180/7 = 25.71 - Since this ends up being a decimal, it cannot be a factor.

180/5 = 36

5 is both a prime number, and it factors evenly: this makes 5 the correct answer.

Hope I could help!

adelina 88 [10]3 years ago
5 0

Answer:

C

Step-by-step explanation:

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Estimate 63.730+ 32.73 by first rounding each number to the nearest whole number​
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Answer:

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Step-by-step explanation:

Round each number to the nearest whole number (the digit directly left to the decimal point.) Note that if the digit to the right of the decimal point is 5 or greater, round up; if it is 4 or lower, round down:

63.730 rounded to the nearest one is 64.

32.73 rounded to the nearest one is 33.

Add:

64 + 33 = 97

97 is your answer.

~

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