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Fed [463]
3 years ago
5

Nine more than a number is 58. Write and solve an equation to determine the number. (Writing the equation is required.)

Mathematics
2 answers:
denis23 [38]3 years ago
8 0

x+9=58

x=58-9

58-9=49

x=49

hope this helped! -Jentri

Fittoniya [83]3 years ago
8 0

the answer is  n+9=58

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The average rate of change is given by [f(b) - f(a)]/(b - a), where a and b represent the interval [a, b].

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[(-1)^2 + 10 - ((-2)^2 + 10)]/(-1 -(-2))

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The sum of the ages of Mr Lin and his son Ethan is 38 years. In three years' time, Mr Lin will be three times as old as his son.
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Mr.Lin's present age is 30 years now. His son is 8 years old now.

Step-by-step explanation:

Let L = Mr.Lin's present age,

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First equation  is

L + S = 38.       (1)

The second equation is  

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2 years ago
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