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12345 [234]
4 years ago
12

Which equation best represents this situation?  The number 39 is equal to 13 subtracted from an unknown number.   A. 39 = r ÷ 13

  B. 39 = 13 + r   C. 39 = r – 13   D. 39 = 13r
Mathematics
2 answers:
joja [24]4 years ago
8 0
C! 39 is being subtracted. it's the only one where it's being subtracted. r is the unknown. 13 is being subtracted from r.
klasskru [66]4 years ago
5 0
39 = r - 13

It would be C :)

WHY? 

Because r is our unknown number, and if 13 is subtracted from it, then you know that it looks like : r - 13 :)

Thus, making our answer C) because it is the only one that has 13 being subtracted.

~Hope I helped!~
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