Evaluate the expression below for x = 4 6 (x +7)
1 answer:
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Answer:
313,600
Step-by-step explanation:
Let t represent number of years after Beth's 9th birthday.
We have been given that since Beth was born the population of her towns has increased at a rate of 850 people per year. So number of people increased in t years would be .
We are also told that on Beth's 9th birthday the total population was nearly 307,650. This means that t-intercept is 307,650.
The population of town t years after Beth's birthday would be .
To find population on Beth's 16th birthday, we will substitute in our equation as Beth's 16th birthday would be 7 years after 9th birthday.
Therefore, the population on Beth's 16th birthday would be 313,600.
We have the next number
The expanded form of the number is
Also, we can verify that Alex was incorrect because if we do the sum of the expanded form that Alex calculated we obtain
Finally, the correct answer is