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inessss [21]
3 years ago
9

If 8 is added to twice a number and this sum is multiplied by 3ˏ the result is the number multiplied by 3 and 9 is added to the

product.Whats the number?
        
Mathematics
1 answer:
9966 [12]3 years ago
8 0
n-a\ number\\\\(8+2n)\cdot3=3n+9\\\\8\cdot3+2n\cdot3=3n+9\\\\24+6n=3n+9\ \ \ \ /-24\\\\24-24+6n=3n+9-24\\\\6n=3n-15\ \ \ \ /-3n\\\\6n-3n=3n-3n-15\\\\3n=-15\ \ \ \ /:3\\\\3n:3=-15:3\\\\n=-5
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It is an upward quadratic function

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_________________________________

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3 0
3 years ago
The population of an Asian country is growing at the rate of 0.7% annually. If there were 3,942.000 residents in the city in 199
Anettt [7]

Answer:

b) 4,000,000

Step-by-step explanation:

Let the population is measured since 1995,

Given,

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If y represents the population after t years

So, the population after t years would be,

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y=3942000(2.7)^{0.007x}

Therefore, the population after 5 years,

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Hence, the population in 2000 would be approximately 40,00,000.

Option 'b' is correct.

4 0
3 years ago
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vaieri [72.5K]

Answer:

30

Step-by-step explanation:

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Please use an equation step by step and please show the numbers do not use words
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2 years ago
103,727,495 in a word form
3241004551 [841]
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