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klio [65]
2 years ago
12

PLS HELP ILL GIVE BRAINLIEST

Mathematics
1 answer:
prohojiy [21]2 years ago
4 0

Answer:

-40% change

Step-by-step explanation:

  1. This change is a decrease, so first you need to find the difference between the two numbers--> 125 - 75 = 50
  2. Next, you divide by the original number, so 50 ÷ 125 = 0.4
  3. Finally, you multiply your answer by 100, so 0.4 x 100 = 40%. Because this is a decreasing change, you add a negative sign.
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Answer:

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Step-by-step explanation:

We require the sum of 7 terms of the G.S.  -1, 6, -36  .....

The common ratio r = 6/-1 = -6 and the first term = -1.

Sum of n terms = a1 . (r^n  - 1) / (r - 1)

Sum of 7 terms = -1 * (-6)^7 - 1)  / (-6 - 1)

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= -39991 (answer).

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