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vlada-n [284]
3 years ago
9

1. -x=10y2. y+8=-x3. -4+7x+4=3y​

Mathematics
1 answer:
fiasKO [112]3 years ago
6 0

Answer:

1 y=-1/10x

2 y=-x-8

3 y= 7/3x or 2 1/3x

Step-by-step explanation:

1 -x=10y

divide -x and 10 by 10

2 y+8=-x

subtract 8

3 -4+7x+4=3y

divide everything by 3

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In an arithmetic series, what is the sum of the first 22 terms if the first term is 12 and the common difference is 3?
Vilka [71]

Answer:

561

Step-by-step explanation:

an = dn - (a-d)

The difference is 3.

The first term is 12.

an = 3n - (12-3)

an = 3n - 9

Put n as 1, 2, 3, 4, 5 ....22.

3(1) - 9 = -6

3(2) - 9 = -3

3(3) - 9 = 0

3(4) - 9 = 3

3(5) - 9 = 6

...

3(22) - 9 = 57

Add the first 22 terms.

-6+-3+0+3+6+9+12+15+18+21+24+27+30+33+36+39+42+45+48+51+54+57

= 561

4 0
3 years ago
Express the form 1: n <br><br> 5:20
Stella [2.4K]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

5 : 20

Divide both sides by 5 to get the answer

5/5 = 1

20/5 = 4

Thus, the answer is 1 : 4

Have A Nice Day ❤    

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- Ally ✧    

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8 0
3 years ago
How do I solve for x?
zheka24 [161]
3.) 5x-6=0, Add 6 to either side -> 5x=6, divide each side by 5 -> x=6/5 ---- 4.) x+y/3=5, multiple each side by 3 -> x+y=15, move y to the other side -> x=-y+15
3 0
3 years ago
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Olin [163]

Answer:

পার্সেন্টস সহ এই সূত্রটি মিশ্রিত হয় ...

4 0
2 years ago
3²+26+<img src="https://tex.z-dn.net/?f=%5Csqrt%7B125%5C%5C%7D" id="TexFormula1" title="\sqrt{125\\}" alt="\sqrt{125\\}" align="
Lena [83]

Answer:

−590+5√5

^-^hope this helped^-^

6 0
3 years ago
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