3 years ago

Can you help me please.

Mathematics

2 answers:

sdas [7]3 years ago

5 0

What they said is correct^^

Makovka662 [10]3 years ago

3 0

Step-by-step explanation:

$(3a - 15) - (9a + 2) \\ - 6a - 17$

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Which expression is equivalent to 8x - 12y +32

prisoha [69]

The answer is shown above

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3 years ago

Read 2 more answers

The population of a town is 6500 and is increasing at a rate of 4% each year. Create a function for this scenario. At this rate,

Stella [2.4K]

Answer:

$P_4 = 7604.08$

Step-by-step explanation:

If the population increases at a rate of 4% per annum, then:

In year 1:

$P_1 = P_0 + 0.04P_0$

Where $P_0$ is the initial population and $P_n$ is the population in year n

In year 2

$P_2 = P_1 + 0.04P_1$

It can also be written as:

$P_2 = P_0 + 0.04P_0 + 0.04 (P_0 + 0.04P_0)$

Taking out common factor $P_0$

$P_2 = (1 + 0.04) (P_0) + 0.04P_0 (1 + 0.04)$

Taking out common factor (1 + 0.04)

$P_2 = (1 + 0.04) (P_0 + 0.04P_0)$

Taking out again common factor $P_0$

$P_2 = (1 + 0.04) (1 + 0.04) P_0$

Simplifying

$P_2 = P_0 (1 + 0.04) ^ 2$

$P_n = P_0 (1 + 0.04) ^ n$

This is the equation that represents the population for year n

Then, in 4 years, the population will be:

$P_4 = P_0 (1 + 0.04) ^ 4\\P_4 = 6500(1 + 0.04) ^ 4\\P_4 = 7604.08$

3 0

3 years ago

Help i cant figure this out:(

stealth61 [152]

Answer:

6-2=4

31/5 x 8 = 248/40

15/8 x 5 = 75/40

248-75=173

4 13/40

answers in order

6-2=4

6 1/5 - 1 7/8 = 4 13/40

Hope this helps

Step-by-step explanation:

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3 years ago

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Galina-37 [17]

I think it’s A 200-12(b-2)

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3 years ago

Ethan ran 11 miles in 2 hours. what is the unit rate of miles to an hour?

bearhunter [10]

11 ÷ 2 = 5.5
Ethan ran 5.5 miles per hour

4 0

3 years ago

Can you help me please.​

Can you help me please.