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rusak2 [61]
3 years ago
8

Evaluate. Let n = 2.Enter the answer in lowest terms. 

Mathematics
2 answers:
Naddik [55]3 years ago
6 0
Numerator:
8n+3n-7
= 11n-7

Plug n=2 in 11n-7, we have:
11*2-7= 15

Denominator:
6*2n-3(n-1)
= 12n-3n+3 (distributive property)
= 9n+3

Plug n=2 into 9n+3, we have:
9*2+3= 21

15/21
= (15/3) / (21/3)
= 5/7

The final answer is 5/7~
jok3333 [9.3K]3 years ago
5 0
First you do the top
8n+3n-7=8*2+3*2-7=16+6-7= 22-7=15
Then you found out the bottom
6*2n-3(n-1)=6*2*2-3(2-1)=6*2*2-3*1=6*4-3*1=24-3*1=24-3=21
15/21 is your answer.
Hope this helps! :)
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If the constant of variation is 12 and y = 36, what does x equal?
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Y=kx
k=constant of variation

given
k=12
y=36

36=12*x
divide both sides by 12
3=x

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8 0
3 years ago
How many toys were stuffed animals
Umnica [9.8K]

Answer:

It would be the first one.

Step-by-step explanation:

The way you figure it out is that it said that there was a total of 80 stuffed animals, so model B is out. Then, you change the percent into a decimal by moving the decimal point over to the right 2 times and you get 0.30. Finally, you multiply 80 by 0.30 and you get 24 stuffed animals.

4 0
3 years ago
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the population of arizona is estimated go increase by 6.2% every year. if the population was 4.18 million in 2016 estimate popul
aleksklad [387]

Given:

a.) The population of Arizona is estimated to increase by 6.2% every year.

b.) The population was 4.18 million in 2016.

For us to be able to determine the population in 2022, we will be using the following formula:

\text{ P = P}_0e^{rt}

Where,

P = Total population after time (t)

P₀ = Starting population = 4.18 million

r = Growth rate (in decimal form) = 6.2%/100 = 0.062

t = time (in years) = 2022 - 2016 = 6 years

e = Euler's number = 2.71828182845

We get,

\text{ P = P}_0e^{rt}\text{ = (4,180,000)(}2.71828182845)^{0.062(6)}\text{ P = 6,063,645.861797897 }\approx\text{ 6,063,646}

Therefore, the population in 2022 will be approximately 6,063,646.

7 0
1 year ago
How would you figure this out?
Anit [1.1K]

the 10 ounce drink is a better deal. it costs less per ounce.

5 0
3 years ago
Here is a rectangle ABCD.
lana66690 [7]

Answer:

32%

Step-by-step explanation:

Area of rectangle ABCD = 20 * 30 = 600 Sq cm

After increasing the length and width of the rectangle by 20% and 10% respectively.

New length = 30 + 20% of 30 = 30 + 6 = 36 cm

New width = 20 + 10% of 20 = 20 + 2 = 22 cm

Area of new rectangle = 36*22 = 792 Sq cm

Increase in area = 792 - 600 = 192 Sq cm

Percentage increase in area

= (192/600) *100

= 32%

5 0
3 years ago
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