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Wittaler [7]
3 years ago
10

Tell which number is prime: 18, 42, 68, 79.

Mathematics
2 answers:
fredd [130]3 years ago
8 0
The number is 79 that is prime
nadezda [96]3 years ago
3 0
She is correct the answer is 79.
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Answer:

m = 25/28

Step-by-step explanation:

It's best to enclose fractional coefficients inside parentheses to eliminate ambiquity:   2/7m-1/7=3/14 => (2/7(m - (1/7) = (3/14).

The LCD is 14; each of the denominators {7, 14} divides evenly into 14.  Hence our equation becomes

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insens350 [35]

Answer:

1.75

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