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masha68 [24]
3 years ago
11

Which number from the set {9, 10, 13, 15} is the solution to this equation? 3(x − 7) = 9

Mathematics
2 answers:
arlik [135]3 years ago
6 0

Answer:

10

Step-by-step explanation:

3(x - 7) = 9 \\ 3x - 21 = 9 \\ 3x = 9 + 21 \\ 3x = 30 \\ x =  \frac{30}{3} \\ x = 10  \\ x =  \{10 \}

Hence 10 forms the set in the solution of given equation.

Lyrx [107]3 years ago
3 0

Answer:

10 because you have to divide 3 on both sides so that leaves

x - 7 = 3

the add 7 to both sides so x = 10

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(a)

Compute the probability of more than one death in a corps in a year as follows:

P (X > 1) = 1 - P (X ≤ 1)

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6 0
3 years ago
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Answer:

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