1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11Alexandr11 [23.1K]
3 years ago
14

PLEASE HELP

Mathematics
2 answers:
Nikolay [14]3 years ago
8 0

Answer:

204,160,000

Step-by-step explanation:

Assuming the sample is a good representation of the people from the United States.

Since there were 1,000 surveyed... and 638 of them were wearing glasses,  that makes a proportion of 638 out of  1,000 people, or 63,8 / 100 people... so 63.8%... or 0.638

So, if we assume that the US population is of 320 million, how many people does that make wearing glasses.... we just have to multiply 320M by 0.638

G = 320,000,000 * 0.638 = 204,160,000

mylen [45]3 years ago
4 0

Answer:

<u><em>39.68 million[</em></u>

Step-by-step explanation:

Remember that the sample is 1000 people.

Of those 1000 people we know that 762 wear corrective lenses. 124 of these people wear contact lenses.

The probability that a randomly selected person will wear contact lenses is:

P = \frac{124}{1000}\\\\P = 0.124

Then, the expected number of people who wear contact lenses is:

N = 320 * P

Where N is given in units of millions.

N = 320 * 0.124

N = 39.68\ million

You might be interested in
A car drove 1550 miles on 45 gallons of gas. What is the Unit Rate of miles<br> per gallon of gas? *
Nataliya [291]
I’m not sure sorry!
7 0
3 years ago
Read 2 more answers
WHAT IS IT PLEASEEE HELP ME ASAP
zmey [24]
The answer is 64 because it goes by 2 abd it needs to find the line between the boxes
4 0
2 years ago
What is the probability of drawing an even numbered card, keeping it, and then drawing another even numbered card from a stack o
Oksanka [162]

Answer: 1/4

Step-by-step explanation:

In a stack of 24, the 2 mediums are odd and even cards in this question. This means that 1/2 the cards are even and 1/2 are odd. To get a even card once is a 1/2 chance, then to get it again is 1/2 x 1/2 chance or 1/4 chance. This is what I think.

5 0
3 years ago
X=7^y how can you rewrite this equation in y = form ?
Anuta_ua [19.1K]

Answer:

y = lnx / ln 7.

Step-by-step explanation:

x = 7^y

Take logarithms of both sides:

ln x = ln 7^y

ln x = y ln 7     ( because ln a^b = b ln a.   One of the Laws of Logarithms).

y = lnx / ln 7.

6 0
3 years ago
At 1600 principal earns 7% interest compound semiannually twice per year after 33 years what is the balance in the account
NARA [144]
A $1,600.00 principle earns 7% interest, compounded semiannually twice per year. After 33 years, what is the balance in the account. My answer is $112,992.00

4 0
3 years ago
Other questions:
  • Which element is always present in a combustion reaction?
    14·1 answer
  • How do you find the slope?
    11·1 answer
  • Can some one help me Pls
    7·1 answer
  • In triangle ABC, m angle A = 43 and m angle C = 66, what is m angle B?
    14·1 answer
  • What = 102 answer plz
    8·2 answers
  • Mahesh charges $21.50 a month for cutting his neighbor's lawn. How much money will he make in a year? A. $258.00 B. $215.00 C. $
    9·1 answer
  • 20 pts please get this right
    10·2 answers
  • In which pair do both decimals represent rational numbers?
    15·1 answer
  • Find the value of x. Round your answer to the nearest tenth<br> (Will give brainiest)
    15·1 answer
  • Please Help this is Due in 1 hour and I really dont understand any of this. (Question in Image)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!