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3 years ago

6) Write an expression that is equivalent to 3(7 + x). 3(7+ x) =_ +_ ?

Mathematics

1 answer:

sergejj [24]3 years ago

6 0

Answer:

21 + 3x

Step-by-step explanation:

hope this helps

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Answer:

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Step-by-step explanation:

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3 years ago

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olganol [36]

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3 years ago

Suppose the population of a town is 2,700 and is growing 4% each year. A. Write an equation to model the population growth. B. P

miss Akunina [59]

Answer:

Third option i.e. A. $2700(1.04)^x$ and B. About 4,323 people

Step-by-step explanation:

We are given that,

Initial population of the town = 2,700

The rate of growth = 4% = 0.04

Part A: Since, the equation for the growth is given by,

Population growth = $P(1+r)^x$ , where P is the initial population, r is the rate of growth and x is the time period of growth.

We have, according to the question,

Population growth = $2700(1+0.04)^x$

i.e. Population growth = $2700(1.04)^x$

Thus, the equation for the population growth is $2700(1.04)^x$ .

Part B: Now, it is required to find the population after 12 years i.e. x= 12.

So, we have,

Population = $2700(1.04)^x$

i.e. Population = $2700(1.04)^{12}$

i.e. Population = $2700\times 1.601032$

i.e. Population = 4,323

Hence, the population after 12 years is 4,323 people.

Thus, the third option is correct.

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3 years ago

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3 years ago

6) Write an expression that is equivalent to 3(7 + x). 3(7+ x) =___ +___ ?

6) Write an expression that is equivalent to 3(7 + x). 3(7+ x) =_ +_ ?