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hammer [34]
3 years ago
5

Help please :)

Mathematics
1 answer:
Veronika [31]3 years ago
8 0

Answer

500

Step-by-step explanation:

If the biologist tags 25 birds and lets them go, and then catches 100 and 5 of them have the tags, that would mean 20 of them are still out in the wild.

The way to solve this is if you put it into a proportion.

5/100 = 25/x

5x = (100)(25)

5x = 2500

5x/5 = 2500/5

x = 500

5/100=25/500

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Please help me!
dybincka [34]

Answer:

They are only equal on day 0, both having 10 population.

Step-by-step explanation:

Given the bacteria on the counter is initially measured at 5 and doubles every 3 days we can generate the following geometric equation:

f(x)=10*2^{\frac{x}{3} }

Given the bacteria on the stove is measured at 10 and doubles every 4 days we can create another equation:

f(x)=10*2^{\frac{x}{4} }

To find how many days it will take for the bacteria population to equal the same lets set both equations equal to eachother:

10*2^{x/3}=10*2^{x/4}

Divide both sides by 10

2^{x/3}=2^{x/4}

Since both exponents have the same base we can set the exponents equal to eachother and solve for x:

\frac{x}{3}=\frac{x}{4}

Multiply both sides by 3 to isolate x on the left side

x=\frac{3x}{4}

Multiply both sides by 4 to remove fraction

4x=3x

Subtract 3x to isolate x on the left side

x=0

Plug x into one of our original equations

f(0)=10*2^{0/3}

Solve

f(0)=10

6 0
2 years ago
Someone please help me
Alex_Xolod [135]

Answer: Pretty sure it's A

Step-by-step explanation: If you find the square root of 282 you get 16.7

5 0
2 years ago
Read 2 more answers
Hi, what is 19-93=12x+8y-30e ?
Arisa [49]
It is 92826261 i am patrol guy
6 0
2 years ago
Rebbeca's recipe calls for 4/5 of a cup of flour. She plans to make 1/4 of the recipe. How much flour will she use?
sukhopar [10]
1/4 of 4/5
=16/20 divided by 5/20
=16/20*20/5
=320/100
=3.2 or 3 1/5
3 0
3 years ago
Read 2 more answers
I take half of Jeremy's money and divide it into 7 equal piles. Six of these piles blow away in the wind, but from the seventh p
madreJ [45]
$140 dollars,
Using the equation (1/2)J/7=x. J=Jeremy's total money.7 because it was divided into 7 piles. Then, since 6 piles are blown away, we don't need to care about that for now. After that, you take 2 dollars and give the rest to Jeremy which is 8 dollars. You can create the equation x-2=8. Solve for x which is $10. Finally substitute that into the first equation to get (1/2)J=70. Multiply 2 to both sides to cancel out the (1/2) and the 70 by 2 to get Jeremy's total money which is $140

5 0
3 years ago
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