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3 years ago

8

in seans fish tank, there are 6 times as many goldfish as there are guppies.there are a total of 21 fish in tje tank. how many m

ore goldfish are there than guppies?

1 answer:

Andrei [34K]3 years ago

6 0

There are 126 more goldfish then guppies.

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Really stuck help <br> The picture below is the problem

iren [92.7K]

Answer:

Step-by-step explanation:

figure one

formula length x width x height

plug in 7 x 2 x 3

volume 42 cm^3

figure 2

formula length x width x height

plug in 3 x 2 x 7

volume 42 cm ^3

5 0

2 years ago

What is the interior angle sum of 31-gon

Vadim26 [7]

Sum of Interior Angles = (Number of Sides -2) • 180 degrees

Sum of Interior Angles = 29 * 180

Sum of Interior Angles = 5,220

4 0

3 years ago

At the moment a certain medicine is injected, its concentration in the bloodstream is 120 milligrams per liter.

igomit [66]

Answer:

$c(t) = 120 [0.7]^{t}$

Step-by-step explanation:

At the moment a certain medicine is injected, its concentration in the bloodstream is 120 milligrams per liter.

From that moment forward, the medicine's concentration drops by 30% each hour.

Therefore, the medicine concentration c(t) in mg/liters after t hours will be modeled as

$c(t) = c(0) [1 - \frac{30}{100}]^{t}$

⇒ $c(t) = c(0) [1 - 0.3]^{t}$

⇒ $c(t) = 120 [0.7]^{t}$ . (Answer)

7 0

3 years ago

Read 2 more answers

You have 68 feet of fencing to enclose a rectangular plot that borders on a river. If you DO NOT fence the side

Vladimir79 [104]

Answer:

168 = L + 2W

And you want to maximize LW.

Which means you want to maximize W (168 - 2W), or 168W - 2W^2.

To maximize that, the derivative must go to zero.

0 = 168 - 4W, or W = 42. And L = 84. Done. :-)

Step-by-step explanation:

3 0

2 years ago

I need help plez and thanks

Elenna [48]

The answer is 80, there multiplying x2 for each number

7 0

3 years ago