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3 years ago

10

Membership in the fishing club went from 120 members last year to 87 members this year. What was the percent of decrease in memb

ership?

1 answer:

Reika [66]3 years ago

3 0

It would be: 87/120 * 100 = 72.5

Percentage decrease = 100 - 22.5 = 27.5

So, your final answer is 27.5%

Hope this helps!

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Which simplifications of the powers of i are correct? There may be more than one correct answer.

fredd [130]

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6 0

3 years ago

How do you find the missing number of a perfect square trinomial?<br><br> 25x^2 - 60x + ___

Harrizon [31]

Answer:

36

Step-by-step explanation:

Compare what you have to the square ...

(a +b)^2 = a^2 +2ab +b^2

Your "a" is √(25x^2) = 5x

Your "2ab" is -60x. Since you know "a", you can find "b".

2ab = -60x

2(5x)b = -60x . . . . . . . substitute for "a"

b = -60x/(10x) = -6

Then the missing term is b^2 = (-6)^2 = 36.

Your trinomial is ...

25x^2 -60x +<u>36</u>

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