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lesantik [10]
3 years ago
5

Consider the arithmetic sequence 3,8,13,18 find S15

Mathematics
1 answer:
lora16 [44]3 years ago
3 0

Answer:

This is an arithmetic sequence since there is a common difference between each term. In this case, adding  

5

to the previous term in the sequence gives the next term. In other words,  

a

n

=

a

1

+

d

(

n

−

1

)

.

Arithmetic Sequence:  

d

=

5

This is the formula of an arithmetic sequence.

a

n

=

a

1

+

d

(

n

−

1

)

Substitute in the values of  

a

1

=

3

and  

d

=

5

.

a

n

=

3

+

(

5

)

(

n

−

1

)

Simplify each term.

Tap for more steps...

a

n

=

3

+

5

n

−

5

 

Subtract  

5

from  

3

.

a

n

=

5

n

−

2

Step-by-step explanation:

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4x + y = 3 -2x + 3y = -19 what's the solution plz help
Rainbow [258]

The solution to given system of equations is x = 2 and y = -5

<em><u>Solution:</u></em>

<em><u>Given the system of equations are:</u></em>

4x + y = 3 ---------- eqn 1

-2x + 3y = -19 ---------- eqn 2

We have to find the solution to above system of equations

<em><u>We can solve the system by substitution method</u></em>

From eqn 1,

4x + y = 3

Isolate y to one side

y = 3 - 4x ----------- eqn 3

<em><u>Substitute eqn 3 in eqn 2</u></em>

-2x + 3(3 - 4x) = -19

-2x + 9 - 12x = -19

Combine the like terms

-14x = -19 - 9

-14x = -28

Divide both sides of equation by -14

<h3>x = 2</h3>

<em><u>Substitute x = 2 in eqn 3</u></em>

y = 3 - 4(2)

y = 3 - 8

<h3>y = -5</h3>

Thus the solution is x = 2 and y = -5

5 0
3 years ago
Jim has a home loan and a car loan. He defaults on his home loan after a year of making payments on time.However, he continues t
FinnZ [79.3K]
Bad debt is the correct answerbro

6 0
3 years ago
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Refer to the table below if needed.
lozanna [386]

Answer:

12

Step-by-step explanation:

y=c that make 0 and then i mulitply -1 to -12

then i did the opposite for 360 time -12 that 700 and then i devided and got 12

4 0
3 years ago
Read 2 more answers
Perform the indicated operation and simplify the result.<br><br> (Tell me if it’s too blurry)
Alex

Answer:

7/(3a-1)

Step-by-step explanation:

I have tried to show the steps in the attached image,

if you need further explanation please let me know.

3 0
3 years ago
Plz explain step by step, I'm taking Adv. Math (Algebra) It's confusing If can't explain, plz at least give right answer ✌
Mashcka [7]

Question 4:

OOOOOHHH a breakthrough! I was confused when I read this question but now I get it!

Okay when dividing this equation I would do this

5^4

25

Since 25 is 5 x 5 I would mark it as 5^2, and then I can subtract!

5^4

5^2 =

5^2

If you do it like this then it would be the first choice.



7 0
3 years ago
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