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den301095 [7]
3 years ago
10

The exponential model A=831.1 e^0.022t describes the population,A, of a country in millions, t years after 2003. Use the model t

o determine the population of the country in 2003
Mathematics
1 answer:
KIM [24]3 years ago
8 0

Answer:

831.1 million

Step-by-step explanation:

If the exponential model describes the population after 2003 and we must determine the population of the country in 2003 then t=0 because the time only starts after 2003:

A=831.1\cdot{e^(0.022\cdot{0})}

e to the power of 0 is equal to 1:

A=831.1\cdot{e^(0.022\cdot{0})}=831.1\cdot{1}=831.1

The population in 2003 is 831.1 million

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Kevin:

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4 0
4 years ago
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Adult tickets to a basketball game cost $5. Student tickets cost $1. A total of $3,169 was collected on the sale of 1,325 ticket
eimsori [14]

Answer:

461 adults and 864 students

Step-by-step explanation:

We can set-up a system of equations to find the number of adults. We know students and adults attended. We will let s be the number of students and a be the number of adults. Since 1,325 tickets were purchased, then s+a=1325.

We also know that a total of $3,169 was collected and adult tickets cost $5 each and students cost $1 each. We can write 1s+5a=3169.

We will solve by substituting one equation into the other. We first solve the first equation for s which is s=1325-a. Substitute s=1325-a into 1s+5a=3169. Simplify and isolate the variable a.

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1325-1325+4a=3169-1325

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a=461

This means that 461 adults attended and 864 students attended since 864+461=1325.

8 0
4 years ago
What is the answer to this problem?
MaRussiya [10]

its -1/4


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Marizza181 [45]
The correct answer is C
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