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bixtya [17]
3 years ago
12

20 points pls help no links

Mathematics
1 answer:
aniked [119]3 years ago
3 0

Answer:

(-15, 13)

Step-by-step explanation:

-3(8x + 9y = -3)

4( 6x + 7y = 1)

-24x - 27y = 9

24x + 28y = 4 (add both equations)

y = 13

6x + 7*13= 1

6x + 91= 1

6x = 1 -91

x = -91/6

x = -15

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I need help show work<br> ill mark brainliest​
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Answer:

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Step-by-step explanation:

The exponential increasing formula is y = a(1+r)^{x}, where

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∴ a = 300

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∴ r = 20%

→ Divide it by 100 to change it to decimal

∵ 20% = 20 ÷ 100 = 0.2

∴ r = 0.2

∵ The time is 6 years

∴ x = 6

→ Substitute these values in the exponential formula above

∵ y = 300(1+0.2)^{6}

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∴ y = 896

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