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Harlamova29_29 [7]
2 years ago
11

How many of the 320 million Americans would you predict wear contacts lenses?​

Mathematics
2 answers:
Bess [88]2 years ago
4 0

Answer:

40,640,000

Step-by-step explanation:

The way I solved this equation was by dividing 320,000,000 by 1,000 (to make smaller numbers). Then, I got 320,000. From here, I was able to multiply 320,000 by 127 (the number found in this specific study group) to get 40,640,000. Or, you could just multiply 320,000,000 by 0.127 (the decimal equivalent to 127/1000) to get the same answer. Please mark Brainliest if this helped :)

AveGali [126]2 years ago
4 0

Answer:

40,640,000

Step-by-step explanation:

The sample size is 1000 and 127 wear contacts so

127/1000 = x/320000000

(127 * 320000000)/1000 = x

40,640,000 = x

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Lelechka [254]
The volume a cylinder is v=(area of base)h and since the area of the base is πr², you can write the equation a v=πr²h.  Since the problem wants us to find what be is in the equation of a cylinder as v=Bh, we know that B=πr².  The problem gave us the diameter of the circle so we no the radius is going to be the diameter (24) divided by 2 which equals 12.  therefore B=12²π.

I hope this helps. 
6 0
3 years ago
0.75=0.4p+100 what does p equal?
neonofarm [45]

Answer:

p=−248.125

Step-by-step explanation:

  1. Subtract 100 on each side of the equation.
  2. After this, you will have 99.25=0.4p.
  3. Divide each side of the equation by 0.4 to get p by itself.
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3 0
3 years ago
50 POINTS I WILL MARK BRAINLIEST PLZ HELP ITS TIMED
oksano4ka [1.4K]

Answer:

The given polygon has 4 vertices and, 4 non-parallel and non equal sides. So the given polygon is a quadrilateral.

Step-by-step explanation:

The given vertices of are (–2, 4), (5, 4), (3, –3), and (–2, 0).

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6 0
3 years ago
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5. Does the frequency distribution given appear to be normal?
loris [4]
The second yes is the answer
8 0
3 years ago
Every day, the Scott Pet Store uses 3 bags of dog food to feed the dogs. For how many days will 1/2 of a bag of dog food last?
nadezda [96]
If you would like to know for how many days will 1/2 of a bag of dog food last, you can calculate this using the following steps:

1 day ... 3 bags of dog food
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x = 1/2 * 1/3
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The correct result would be 1/6 of a day.
4 0
3 years ago
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