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viktelen [127]
4 years ago
9

PLEASE HELP (WILL NAME BRAINLYEST)

Mathematics
1 answer:
ira [324]4 years ago
7 0

Answer:

4.04 x 10^0 people/km^2 (x 10^0 is fairly redundant but if the answer is required in standard form then include it)

Step-by-step explanation:

Population Density = Population/Area

= 3.11 x 10^7 / 7.69 x 10^6

= 31,100,000 / 7,690,000

= 3110 / 769

= 4.04

= 4.04 x 10^0

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6x + 5y = 82<br> 2x + 5y = 54
vovikov84 [41]

Answer:

A) 6x + 5y = 82

B) 2x + 5y = 54  We'll multiply equation B) by -1

B) -2x -5y = -54 Then we'll add this to A)

A) 6x + 5y = 82

4x = 28

x = 7

y = 8

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
15PTS PLEASE HELP ASAP!<br> (dont write random answers pls)<br> look at the pic attached:
Paha777 [63]

Answer:

y=2x-1

Step-by-step explanation;

First step you have to do is get you desmos graphing calculator

input the equation- 1/2x+4 when you put it you get your line

from there you have to find one of the equations from the answer choices which one is parallel from there input your four answer choices on your graphing calculator then look which of the equations is parallel to the equation -1/2x+4 when you do that you get y=2x-1

Hope this helps :)

4 0
3 years ago
3y=9x+18
enyata [817]
The slope is: y = 3x + 6
The y-intercept is: 6
4 0
4 years ago
620,000 round off by ten thousand
Softa [21]
620,000 is already rounded by ten thousand
6 0
3 years ago
The coldest temperature ever recorded in the United States was -79.8 Degree Fahrenheit at Prospect Creek in Alaska. The lowest t
taurus [48]

Answer:

-10.1 Fahrenheit

-79.8F - -69.7F = -10.1

8 0
4 years ago
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