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kupik [55]
3 years ago
7

SOLVE THIS PROBLEM, PLEASE! :(

Mathematics
1 answer:
pashok25 [27]3 years ago
8 0

Answer:

1st Blank: 5

2nd Blank: 3

3rd Blank: -8

4th Blank: -8

5th Blank: 12

Step-by-step explanation:

15x+35y=-100

-15x+9y=-252

___________

44y=-352

___   ___

44       44

y=-8

3x+7(-8)=-20

3x-56=-20

   +56  +56

__________

3x=36

__  __

3     3

x=12

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3 years ago
WILL MARK CORRECT ANSWER BRAINLIEST!! 100 Points!!
Vlad1618 [11]

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1st account:

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6 0
3 years ago
Write the first four terms of the sequence defined by An=20-30(n-1)
monitta

The first four terms of sequence is 20, -10, -40, -70

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

Given that we have to find the first four terms of sequence

<em><u>Given recursive formula is:</u></em>

a_n = 20 - 30(n-1)

<em><u>To find the first term, substitute n = 1</u></em>

a_1 = 20-30(1-1)\\\\a_1 = 20-30(0)\\\\a_1 = 20

Thus the first term of sequence is 20

<em><u>To find the second term, substitute n = 2</u></em>

a_2 = 20-30(2-1)\\\\a_2 = 20-30(1)\\\\a_2 = 20-30\\\\a_2 = -10

Thus the second term of sequence is -10

<em><u>To find the third term, substitute n = 3</u></em>

a_3 = 20-30(3-1)\\\\a_3 = 20-30(2)\\\\a_3 = 20-60\\\\a_3 = -40

Thus the third term of sequence is -40

<em><u>To find the fourth term, substitute n = 4</u></em>

a_4 = 20-30(4-1)\\\\a_4 = 20-30(3)\\\\a_4 = 20-90\\\\a_4 = -70

Thus the first four terms of sequence is 20, -10, -40, -70

3 0
4 years ago
What is the value of the expression 53.5-5? please explain ​
tatuchka [14]
48.5 is the answer.
Reason- an expression is an equation without an equal sign and this expression is saying 53.5 - 5.
4 0
3 years ago
Read 2 more answers
Pls help am about to fail....
sdas [7]

Answer:

66

Step-by-step explanation:

12x-30=6x+18

12x-6x=18+30

6x=48

x=8

Plug back In:

12(8)-30

96-30

66

8 0
3 years ago
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