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Masja [62]
1 year ago
7

The population of Champaign, Illinois is given for three years in the table below:

Mathematics
1 answer:
Crazy boy [7]1 year ago
4 0

Answer:

See below

Step-by-step explanation:

a) <u>Using the first two lines to get the equation:</u>

Since t = 0 represents a start point, the y-intercept is 163488

<u>Slope is:</u>

  • (168392 - 163488)/10 = 490.4

<u>And the equation:</u>

  • P(t) = 490.4(t - 1970) + 163488

b) Prediction of the population in 2012 using the function:

  • P(2012) = 490.4(2012 - 1970) + 163488 = 184084.8

As we see the number we got is less than the one on the line 3 of the table. So the model underestimated the actual population.

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A salesman has a base salary $2600 per month and makes 3 commission on each unit sold. If his total annual compensation is $48,0
nevsk [136]

Answer:

Each unit cost $800

Step-by-step explanation:

Annual compensation = $48,000

Annual number of units sold = 2000

Commission on each item sold = 3%

Compensation for 2000 units = $48,000

Compensation for 1 unit = $48,000/2000 = $24

Cost of one unit = compensation for one unit ÷ commission on one unit = $24 ÷ 3% = $24 ÷ 0.03 = $800

8 0
2 years ago
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Which rational number represents a decrease in water level from 8 feet to 6 feet???
cestrela7 [59]

Answer:

C) -2

Step-by-step explanation:

8 + (-2) = 6

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2 years ago
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Patient A receives 3 times the amount of a certain medication as Patient B. The two doses add to 200 milligrams. What amount of
EastWind [94]

Answer:

Patient A - 150 mg

Patient B - 50 mg

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Since patient A gets three times more, 50 times 3 is 150. 150 plus 50 is 200, therefore, patient A gets 150 mg and patient B gets 50 mg. I hope this helps :)

5 0
2 years ago
The system on the left can be reduced to: t + u = 9 9t – 9u = –9 Solving the system t= , u=
LenaWriter [7]
We have that
<span>t + u = 9 --------> t=9-u-----------> equation 1
9t – 9u = –9----------> equation 2
</span>
I substitute 1 in 2
9*[9-u]-9u=-9
81-9u-9u=-9
18u=81+9
18u=90
u=90/18---------> u=5
t=9-u------> t=9-5----> t=4

the answer is
u=5
t=4




5 0
2 years ago
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blagie [28]

Answer:

The answer on ed is 17 units I took the test.

Step-by-step explanation:

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