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viktelen [127]
3 years ago
9

PLEASE HELP (WILL NAME BRAINLYEST)

Mathematics
1 answer:
ira [324]3 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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A vcr and tv were bought for 8000 each. The shopkeeper made a loss of 4 per cent on vcr and 8 per cent prophit on the tv. Find t
aleksley [76]

Answer:

  2% gain

Step-by-step explanation:

We assume the shopkeeper bought the appliances at the indicated prices, and that gain is computed on the basis of that cost price.

Since the base cost is the same for each appliance, the percentages can be added directly to find the percentage gain on 8000. However, the shopkeeper's total outlay was 16000, not 8000, so the final gain percentage is half of that total.

  gain percent = (-4% + 8%)/2 = 2%

_____

If you want to see the actual numbers:

  Loss on VCR = 4% × 8000 = 320.

  Gain on TV = 8% × 8000 = 640.

Total gain on 16000 is -320 +640 = 320. As a percentage, that is ...

  320/16000 × 100% = 2%

7 0
3 years ago
What is the value of n - 5, when n = 8?<br> A) 3 <br> B) 4 <br> C) 12 <br> D) 13
evablogger [386]
You plug 8 into where n is so it's 8-5
8-5= 3 so the answer is A
8 0
3 years ago
Read 2 more answers
What do I for for c? PLEASE HELP
ira [324]
Just draw one empty circle for 1 and then a filled circle for -1 so then it's 1-1 which equals 0
5 0
3 years ago
What is 5 divided by 1/4
True [87]
The answer is 20. in simply form but the one that is not simply is 20/1/ There the same.
5 0
3 years ago
On farm there are 200 cows from those 200 cows there are 150 cows that can give milk .in one corral there are 20 cows. How many
LiRa [457]

Here the two samples should be comparable .

The total number of cows in the farm = 200

the total number of cows giving milk = 150

the total number of cows in corral = 20

Suppose total number of cows giving milk in corral = x

The ratio of the total number of cows present to the total number of cows giving milk should be same in farm and corral

so : 200 = 20

------- -------

150 x

now we do cross multiplication :

200 x = 150* 20

200x = 3000

x= 3000/200

x= 15

SO we expect 15 cows in corral should be giving milk .

Answer : 15

4 0
3 years ago
Read 2 more answers
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