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3 years ago

How do you do this equation? 9x+(y)i-5=-12+4

1 answer:

3 0

$9x+yi-5=-12+4\\\\(9x-5)+yi=-13\iff9x-5=-13\ and\ y=0\\\\9x=-13+5\\9x=-8\\x=-\frac{8}{9}\\\\Answer:x=-\frac{8}{9}\ and\ y=0.$

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olganol [36]

Answer:

$17,000 at 14% and $9,000 at 2%

Step-by-step explanation:

Let x = amount invested at 14%.

Let y = amount invested at 2%.

x + y = 26000

0.14x + 0.02y = 2560

-0.02x - 0.02y = -520

(+) 0.14x + 0.02y = 2560

-------------------------------------

0.12x = 2040

x = 17,000

x + y = 26000

17000 + y = 26000

y = 9000

Answer: $17,000 at 14% and $9,000 at 2%

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3 years ago

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Step-by-step explanation:

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3 years ago

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4 years ago

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Pradip and Pam have each a plate of apple slices in orange slices the ratio of apple slices to the total number of slices on pra

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Answer:

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3 years ago

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If the midpoint of A (a, b) and B(-9, 6) is M(-3, 5): Find the value of a.

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