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Alchen [17]
3 years ago
8

Solve x^2 = 144.A. 72 B. 12C. +12D. -12​

Mathematics
2 answers:
Vladimir79 [104]3 years ago
5 0
B. 12

Ex: 12 squared is 144
Jey
3 years ago
i got it wrong on my test
Mandarinka [93]3 years ago
3 0

Answer: 12

Step-by-step explanation:

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Answer:

3x - (15 x 3) = 90

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there are 3 boxes. We don't know how many are in them yet, so we write this as 3x. However, we know that we give away 15 to 3 different teachers. 15 x 3 = 45

Therefore the first part is 3x - 45

We also know that in the end we have 90 left.

So our final equation is:

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