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professor190 [17]
2 years ago
10

I'm a student at LUOA and, this is way too hard. Can someone help me, please?

Mathematics
1 answer:
puteri [66]2 years ago
6 0

The answer is the first one.

Knowing that population density is like a rate, people per a given area, you would take the amount of people and divide by the area.

3.11E7/7.69E6 = 4.02 people per km squared.

Also the “E” is another way to write times 10 to a power and I recommend using that notation when plugging it into a calculator.

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Popcorn kernels pop independently (i.e. unimolecularly). For one brand at constant temperature, 12 kernels pop in 5 seconds when
likoan [24]

Answer:

no of kernels  pop = 4.34

Step-by-step explanation:

given data

kernels pop in 5 second  = 12

kernels are present = 235

solution

we get here kernels are pop at rate of here

kernels are pop at rate = 12  ÷  235  

kernels are pop at rate = 0.051063

and

we get here maximum kernels are remaining that is

maximum kernels remaining = 235 - 140

maximum kernels remaining = 85

so

no of kernels  pop in 5 second will be

no of kernels  pop = 0.051063   × 85

no of kernels  pop = 4.34

7 0
3 years ago
3 1/2 • 4 3/4 please help
Dmitry [639]

Answer: 16 5/8

Step-by-step explanation:

3 1/2 = 7/2

4 3/4 = 19/4

7/2 * 19/4 = 133/8 or 16 5/8

3 0
3 years ago
Read 2 more answers
Bradly completed 0.8 of his homework and Max completed 8% of his homework. Who completed more of their homework? How do you know
Helga [31]

Answer:

Bradly finished more

Step-by-step explanation:

0.8 is equal to 8/10, which is equal to 80/100, which is equal to 80%, whereas Max is 8%. 80 > 8.

4 0
3 years ago
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What is [2times6]-7+92+45<br> divided by 5
Vesna [10]
\frac{(2 \times 6) - 7 + 92 + 45 }{5} =  \frac{12 - 7 + 92 + 45}{4} =  \frac{142}{5} = 28.4

Hope that helps :)
7 0
3 years ago
Find the value of y so<br> that (-2,y) satisfies y =-7x?
Anit [1.1K]

Answer:

y=14

Step-by-step explanation:

plug in -2 in the place of x

y=-7(-2)    y=14

6 0
3 years ago
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