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Brut [27]
3 years ago
10

25 POINTS QUICK!!! could someone please help me with these two problems?? and possibly explain?? i need work too please! 25 POIN

TS

Mathematics
2 answers:
Mila [183]3 years ago
8 0
A.

4x+10=6x
-4x. -4x
——————-
10=2x
— —
2x 2x
= 5. The 2xs cancel out
* the sum of 2 angles =90 degrees


B

5x+13 = 3x+7
Subtract 3x on both sides ( always the less amount gets subtracted )
5x-3x =2x +13
3x-3x cancels out so you get +7
Now you have the equation 2x+13=7
-13 - 13
Subtract 13 to both sides ( opposite )
2x = 6
Divide by 2 and your answer is 6.





svet-max [94.6K]3 years ago
6 0

Answer:

the first one A the sum of the angles are 10x+10 For the second one B the sum wud be 8x+20

Step-by-step explanation:

you juts add them all together


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This is an arithmetic sequence with common difference d between consecutive terms.

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The sum to n terms of an arithmetic sequence is

S_{n} = \frac{n}{2}[ 2a + (n - 1)d ]

where a is the first term

here a = - 6, d= 4 and n = 50, hence

S_{50} = \frac{50}{2} [ (2 × - 6) + (49 × 4) ]

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Answer:

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Step-by-step explanation:

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Answer:

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