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IceJOKER [234]
3 years ago
10

Which one is the nth term if a1=15 and d= -3​

Mathematics
1 answer:
levacccp [35]3 years ago
8 0

Answer:

nth term = 18 - 3n

Step-by-step explanation:

nth term = a + (n - 1)d

a1 = 15

d = -3

nth term = a + (n - 1)d

= 15 + (n - 1)-3

= 15 + (-3n + 3)

= 15 - 3n + 3

= 18 - 3n

nth term = 18 - 3n

For instance, if you want to find the 10th term

nth term = 18 - 3n

10th term = 18 - 3(10)

= 18 - 30

= -12

10th term = -12

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<img src="https://tex.z-dn.net/?f=solve%20for%20%22m%22%20t%3D%5Cfrac%7Bms%7D%7Bm%2Bn%7D" id="TexFormula1" title="solve for &quo
dalvyx [7]

Answer:

\boxed{\sf \ \ \ m = -\dfrac{tn}{t-s} \ \ \ }

Step-by-step explanation:

Hello,

let s assume that m+n is different from 0

we have this equation and we need to find m as a function of t, s, and n

t=\dfrac{ms}{m+n}

<=>

(m+n)*t=ms\\\\ tm+tn=sm\\ (t-s)m = -tn\\ m = -\dfrac{tn}{t-s}

for t-s different from 0, so t different from s

hope this helps

4 0
4 years ago
Find the distance between A and B.
Finger [1]

Check the picture below.

7 0
3 years ago
What is the slope of the line​
Law Incorporation [45]

Answer:

-1/2

Step-by-step explanation:

y = -1/2x + 3

Delta y / Delta x

-1/2

Brainliest much appreciated!

6 0
3 years ago
Suppose that there are two types of tickets to a show: advance and same-day. Advance tickets cost $20 and same-day tickets cost
patriot [66]

Answer:the number of advance tickets sold is 35

the number of same day tickets sold is 40

Step-by-step explanation:

Let x represent the number of advance tickets sold.

Let y represent the number of same day tickets sold.

For one performance, there were 75 tickets sold in all. This means that

x + y = 75

Advance tickets cost $20 and same-day tickets cost $25. The total amount paid for them was $1700 both tickets. This means that

20x + 25y = 1700 - - - - - - - - - - - 1

Substituting x = 75 - y into equation 1, it becomes

20(75 - y) + 25y = 1700

1500 - 20y + 25y = 1700

- 20y + 25y = 1700 - 1500

5y = 200

y = 200/5 = 40

substituting y = 40 into x = 75 - y, it becomes

x = 75 - 40

x = 35

6 0
3 years ago
Write the percent 96.55% as a decimal<br><br> a- 9566<br> b- 956.6<br> c- 0.9566<br> d- 9.566
qaws [65]


96.55% divide by 100 then the answer you'll get is 0.9655
but there's no answer in this mcq
4 0
3 years ago
Read 2 more answers
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