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Ivahew [28]
3 years ago
10

Last one, Help with math please 18-20 on the pdf. I do not know how to post a picture I am so sorry.

Mathematics
2 answers:
tatuchka [14]3 years ago
8 0
Question 18
The answer is 4 days. 
Because, 
Kevin =3×n
Anita =4+ (2×n)
Equating the two equations. 
3n=4+2n
3n-2n=4
n=4

Question 19
When the solution is (4,1), it means the value of y=1 and x=4. 
The answer is;
y=x-3
y=-3x+13. Since when the values of x and y are substituted they satisfy the system. 

Question 20
The system has no solution.
This is because the line are parallel and they do not intersect to give a solution. 



soldier1979 [14.2K]3 years ago
6 0
Hello,
Please, see the attached files.
Thanks.

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The product of 6x and ......​
Amiraneli [1.4K]

the answer is true because 6x multiply -2 to give -12x and 6x multiplies x² to give 6x³

8 0
2 years ago
PLEASE HELP ASAP WILL MEDAL BRAINLIEST
Naddik [55]
Given
Present investment, P = 22000
APR, r = 0.0525
compounding time = 10 years
Future amount, A 

A. compounded annually
n=10*1=10
i=r=0.0525
A=P(1+i)^n
=22000(1+0.0525)^10
=36698.11

B. compounded quarterly
n=10*4=40
i=r/4=0.0525/4
A=P(1+i)^n
=22000*(1+0.0525/4)^40
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Therefore, by compounding quarterly, she will get, at the end of 10 years investment, an additional amount of
37063.29-36698.11
=$365.18

5 0
3 years ago
You want to solve 11% of what number is 22. Explain how you can solve that by using a proportion
Doss [256]
Write the first ratio as 11/100 and set it equal to 22/n.

since 11 x 2=22 you can multiply 100 x 2 and you'll get 200. 

*Check*: 11% of 200=22
3 0
3 years ago
Brainliest to correct help plz
Nastasia [14]

Answer:

-68 1/5

Step-by-step explanation:

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3 years ago
What is the exponent of x in in the expression -4x^3y^2 + 6
liberstina [14]

Answer:

3

Step-by-step explanation:

- 4x³y² + 6

the x is raised to the power of 3 , that is exponent of x is 3

4 0
2 years ago
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