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Serhud [2]
3 years ago
5

Someone help me with number 7 please!!

Mathematics
1 answer:
andriy [413]3 years ago
6 0
P is inversely proportional to V  
That is P = k/V  where k is some constant.
Plug in the given values for P and V:-

25 = k/400   giving k =  10,000

so the relation is P = 10,000 / V

when V = 200 ,   200P = 10,000

Its A

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The art teacher needs 70 markers for her classes. The markers come in packages of 15. How many packages of markers will the art
Temka [501]

Answer:

5

Step-by-step explanation:

Take the number of markers and divide by the number in each package

70/15

4.6666repeating

Round to the nearest whole number to determine the number of packages

5

They will need to buy 5 packages

5 0
3 years ago
Need help, cant figure it out
just olya [345]

Answer:

<WSN=80

Step-by-step explanation:

arc WN = 160

<wsn= 1/2 of arc WN

7 0
3 years ago
Given: circle k(O), m AM=125°, m EF=31°, m∠MAF=75°. Find: m∠AME
Bess [88]

Answer:

58°

Step-by-step explanation:

If m AM=125°, then m∠AOM=125°.

If m∠MAF=75°, then m∠MOF=150° (because central angle MOF subtends on the same arc as inscribed angle MAF).

Thus,

m∠FOA=360°-150°-125°=85°.

If mEF=31°, then m∠EOF=31° (as central angle subtended on the arc EF).

Hence,

m∠EOA=m∠EOF+m∠FOA=31°+85°=116°.

Angle EOA is central angle subtended on arc EA, angle AME is inscribed angle subtended on arc AE, thus

m∠AME=1/2m∠EOA=58°.

7 0
3 years ago
Brainlyist to whoever answers first
levacccp [35]

Answer:

The answer is 106

Step-by-step explanation:

angle B is equal to angle D

so do 91 + 15= 106

and the math at angle D is x - 15

hope this helps! :D


8 0
3 years ago
Read 2 more answers
What 2 numbers add up to get 17 and multiply to get -200
alexira [117]
There is no fixed equation when I arrived at these numbers.

I just did trial and error. I came up with 25 and -8 as the numbers.

200 ÷ 25 = 8 ⇒ the sum of 17 depends on the signs of each numbers.

-8 x 25 = -200

-8 + 25 = 17
4 0
3 years ago
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