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Sidana [21]
3 years ago
6

The house sparrows population has decreased by 41% since 1977. The population is now approximately 6.5 million pairs of birds. W

hat was the estimated sparrow population in 1977?
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
5 0
Let x be estimated population in 1977

x - 0.41x  = 6,500,000
 x = (6,500,000 / 0.59

Answer is approximately 11,017,000  

11 million
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gayaneshka [121]

Answer:

The expression f(200) depicts the value of the concentration of the pollutant, which when substituted in the expression T = f(P) will give the value of the thickness of the pelican eggs.

Step-by-step explanation:

Since we are given that T = f(P)

Where T = thickness of the eggs

P = concentration in ppm ((parts per million))

Considering f(200) comparing to f(P)

The expression f(200) depicts the value of the concentration of the pollutant, which when substiuted in the expression T = f(P) will give the value of the thickness of the pelican eggs.

i.e substituted the value of the concentration in ppm to get the thickness of the pelican eggs in mm. since the expression shows thickness of pelican eggs as a function of the concentration. for every 200ppm of concentration, the numerical value of the thickness of pelican eggs can be gotten.

6 0
3 years ago
3k-2=10 whats the answer
kap26 [50]

Answer:

k = 4

Step-by-step explanation:

3k - 2 = 10

3k - 2 + 2 = 10 + 2     (adding 2 to both sides)

           3k = 12

        3k/3 = 12/3       (dividing both sides by 3)

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Happy to help :)

4 0
3 years ago
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Katen [24]

Answer:

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Step-by-step explanation:

When the whole numbers are the same, add the exponents

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If a car is traveling at 65 miles per hour, then how far does it travel in 2 hours?
frez [133]
65 miles per hour means that for each hour, it goes 65 miles

65 miles*2 hours= 130 miles

Final answer: 130 miles
5 0
3 years ago
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Answer:

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Step-by-step explanation:

4 0
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