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Rzqust [24]
3 years ago
13

The number of fish (f) in a fish tank increases when the number of algae blooms (a) decreases. Write the correct equation for th

is scenario, and solve for the number of fish when there are 4 algae blooms. Algae Blooms Fish 10 10 25 4
Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0

Answer:

  • f = -2/5a +14
  • 12.4 ≈ 12 fish for 4 algae blooms

Step-by-step explanation:

The 2-point form of the equation for a line is useful when you are given two points to work with:

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

The independent variable (x) is apparently "algae blooms" and is to be represented by "a". The dependent variable (y) is "number of fish" and is to be represented by "f". So, we have ...

  f = (4 -10)/(25 -10)(a -10) +10

  f = -6/15(a -10) +10

  f = -2/5a +14 . . . an equation for the scenario

Four a=4, the fish population is predicted to be ...

  f = -2/5(4) +14 = 12.4

There will be about 12 fish when there are 4 algae blooms.

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David charges $4 to wash all the windows of a car, inside and out. The amount of money he earns washing the windows must end in
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Answer:

The possible digits are : 0, 2, 6, 4, 8

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A clothing store offers a free T-shirt when a customer spends $75 or more. Lyndon has already spent $36. 95. Which statement bes
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Lyndon should spend $38.05 or more to get a free T-shirt.

We have to find the statement best represents all of the amounts he can spend to get a free T-shirt

Suppose that the amount Lyndon get free T shirt is x.

Given that a clothing store offers a free T-shirt when a customer spends $75 or more.

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