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3 years ago

7

The population of master town was 23000 in 2012. Assume that master town's population increases at a rate of 2% per year Write a

n equation to model the population of master town based on the number of years since 2012.

1 answer:

LiRa [457]3 years ago

6 0

This is an example of exponential growth...

F=Ir^t

P(y)=23000(1.02)^(y-2012)

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Sam scored 59, 64, and 68 on three tests. How many points should he get on the fourth test to get an average score of 70? A. 63.

olga2289 [7]

To find this out the easy way, add up all the numbers and an answer, then divide by 4.
59 + 64 + 68 + 63.67 = 254.67
254.67/4 = 63.66
A is not correct.
59 + 64 + 68 + 65.25 = 256.25
256.25/4 = 69.25
B is not quite correct.
59 + 64 + 68 + 75 = 266.
266/4 = 66.5
C is not correct.
59 + 64 + 68 + 89 = 280
280/4 = 70.
D.) is the correct answer.
I hope this helps!

6 0

3 years ago

Read 2 more answers

There are 130 people in a sport centre.

Mashcka [7]

Answer:

<h2>7/130</h2>

Step-by-step explanation:

Using set notation to answer the question. let:

n(U) be the total people in a sport centre =130

n(G) be number of people that use the gym. = 76

n(P) be number of people that use the swimming pool. = 60

n(T) be number of people that use the track = 32

n(G∩P) be number of people that uses the gym and the pool = 23

n(P∩T) be number of people that uses the pool and the track = 8

n(G∩T) be number of people that uses the gym and the track = 320

n(G∩P∩T) be number of people that uses all three facilities = 6

Using the relationship below;

n(U)= n(GUPUT)+n(GUPUT)'

where n(GUPUT)' is the number of people that doesn't use any facility.

Before we can get that, we need to know n(GUPUT) using the formula;

n(GUPUT) = n(G) + n(P)+n(T)-n(G∩P)-n(P∩T)-n(G∩T)+n(G∩P∩T)

n(GUPUT) = 76+60+32-23-8-20+6

n(GUPUT) = 123

n(GUPUT)' = n(U)- n(GUPUT)

n(GUPUT)' = 130 - 123

n(GUPUT)' = 7

This means that 7 person doesn't use any facility.

Probability that a person selected at random doesn't use any facility = n(GUPUT)' /n(U) = 7/130

3 0

3 years ago

Mr. Claussen needs a total of 15 pounds of ground beef to make hamburgers for a company picnic. He finds that 2 pounds of ground

Marat540 [252]

Answer: $33.00

Step-by-step explanation:

Given

Mr. Claussen needs 15 Pounds of ground beef

It is stated that 2 pounds of beef cost $4.40

Using unitary method

1 Pound cost $\frac{4.4}{2}=\$2.2$

For 15 pounds it is

$\Rightarrow 15\times 2.2=\$33$

Thus, he has to spend $33 for 15 pound meat

6 0

3 years ago

What is the equation of the line perpendicular to –x + y = 7 and passing through (-1, -1)?

Vesna [10]

- x + y = 7
y = x + 7
slope = 1
perpendicular slope = -1

at point (-1, -1),
y = mx + c
-1 = -1 (-1) + c
-1 = 1 + c
c = -1 -1
c = - 2

equation:
y = -x -2
y + x = -2 or - x - y = 2

6 0

3 years ago

What is the absolute value of

andrezito [222]

Answer:

$\frac{8}{9}$

Step-by-step explanation:

the absolute value function always returns a positive value, that is

| a | = | - a | = a

| $\frac{8}{9}$ | = $\frac{8}{9}$

6 0

3 years ago