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Juli2301 [7.4K]
2 years ago
10

What is the approximate percent decrease when a fish count goes down from 850 to 500?

Mathematics
2 answers:
Deffense [45]2 years ago
5 0

Answer:

b

Step-by-step explanation:

Artist 52 [7]2 years ago
4 0

Answer:

Approximate decrease is 70%

Step-by-step explanation:

The percent decrease is the change over the new original / final value.  The change between the old and the new is 850 - 500, which is 350.  Thus the approximate percentage difference is

<u>350</u>

500

A quick way to turn anything with a denominator that starts with 5 and any number of zeros after it ... is to multiply both the top and bottom by 2.  That is, that turns the ratio above to:

<u>700 </u>

1000

Since a percentage is a number of 100, not 1000, just divide everything by 10.  That means take away a zero from each number, which gives you a fraction of:

<u>70 </u>

100

Thus, the result is 70/100, or 70%.

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mash [69]

Answer:

lesser x: - 6

greater x: 2

Step-by-step explanation:

f(x) = (x + 2)² – 16

(x + 2)² – 16 = 0

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3 years ago
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Ad libitum [116K]

(-5, 0) and (-1, 0) are the solutions of -2(-x - 3)² + 8 = 0

Step-by-step explanation:

  • Step 1: Find the solutions of -2(-x - 3)² + 8 = 0.

Solutions are the intersecting points of y = -2(-x - 3)² + 8 and y = 0.

⇒ Solutions are (-5, 0) and (-1, 0)

  • Step 2: (-5, 0) and (-1, 0) are solutions of -2(-x - 3)² + 8 = 0
3 0
3 years ago
The original price of a computer game is 45$ The price is marked down by 18$ what percent of the original price is the markdown?
OLga [1]

Answer:

$27

Step-by-step explanation:

$45 - $18 = $27

Percentage 150% (27 divided by 18 = 1.5, shift the decimal right two times and add the zero at the end which gives you 150%)

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