20 POINTS
Part D How many of the 320 million Americans would you predict wear CORRECTIVE lenses?

Answers

Answer 1

Answer:

320,000,000 * 0.638 = 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


Related Questions

select one card at random from the deck let A be the event that the randomly select a card is a club and let B be the event that the card is a five

Answers

Answer:

1 and 52 chance

Step-by-step explanation:

Help!!!!!!!!!!!!!!!!

Answers

Answer:

13.8

Step-by-step explanation:

We know that 1 inch is 9.2 miles. The houses are 1.5 inches away. We need to divide 9.2 by 2. We get 4.6. 9.2+4.6=13.8!

13.8

2.) Simplify:
10x + 6y +4x =
x(14) + 6y = 14x +6y


Answers

Answer:

{x,y} = {1,1}

Step-by-step explanation:

[2]    6y = -14x + 20

 [2]    y = -7x/3 + 10/3

// Plug this in for variable  y  in equation [1]

  [1]    -10x - 6•(-7x/3+10/3) = -16

  [1]    4x = 4

// Solve equation [1] for the variable  x

  [1]    4x = 4

  [1]    x = 1

// By now we know this much :

   x = 1

   y = -7x/3+10/3

// Use the  x  value to solve for  y

   y = -(7/3)(1)+10/3 = 1

Solution :

{x,y} = {1,1}

The Ride for Health Bicycle Club has chosen a 33-mile course for this Saturday's ride. If the riders plan on averaging 11 mph while they are riding, and they have a 1-hour lunch break planned, how long will it take them to complete the trip?

Answers

Answer:

4 hours

Step-by-step explanation:

33/11 = 3 hours

Plus 1-hour lunch break

Total is 4 hours

The number line shows that x + 7 = 34.
What is the solution to the equation shown on the number line?
X+7
26 27 28 29 30 31 32 33 34 35 36
O A. x= 33
B. X= 24
O C. x = 19
D.
X = 27

Answers

Answer:

D=27

Step-by-step explanation:

34-7 to isolate x by itself

Express the inequality b≥−8 using interval notation

Answers

Answer:

[-8, infinity)

Step-by-step explanation:

Interval notation uses (, [, ], ) where the parentheses are exclusive and the brackets are inclusive. That means, we have:

[-8, infinity)

The reason we don't use the square bracket for infinity is because you can never include infinity in your set

Solve 2/5=x/25 what is the c

Answers

Answer:

x=10

Step-by-step explanation:

By c, I am thinking x...

So, to solve this question, you do cross-multiplication

2/5=x/25

5*x=25*2

5x=50

x=10

Refer to the figure. Find m SUV.
Help :(

Answers

The degrees of SUV is 122

Answer:122°

Since USM is 180° you take 180 and 58° and then subtract them and you get 122°.

The polynomial equation x^(3)-x=0 has exactly one positive root and exactly one negative real root. Please select the best answer from the choices provided T F

Answers

Answer: T

Step-by-step explanation:

1. 5(n-2) +9 =

2. n + 8n² - 17 =

Answers

Answer:

1. n = 0.2

2. n ≈ 1.396577191 or n ≈ -1.521577191

Step-by-step explanation:

Q1:

[tex]5(n-2)+9 = 0[/tex]

[tex]5n-10 = -9[/tex]

[tex]5n = 1[/tex]

[tex]n = 0.2[/tex]

Q2:

Use the quadratic formula on your calculator.

432 oranges are to be divided equally among a number of people. If there had been four people less, the share of each would have been 9 oranges more. Find the number of people.​

Answers

Answer:

the number of people would have been 48

What is the net decimal equivalent if 40%, 30% and 15% discounts were applied

Answers

Answer:

Well you can’t really stack these percentages discounts.

Assuming it’s in the same order as the problem then

We can find the decimal equivalent by just dividing.

So think of it like this way.

Your getting 40 percent off, the original price.
The original price of course is a 100 percent since its the one and only price.

When your taking 0.4 percent off then its taking off 0.4 from the 1.00

So you have 0.6.

Your now paying 60 percent of the price.

Now the 30 percent.
Same thing except this times its 0.6.

Now 30 percent of 60 is 18 percent and then subtract that by 0.6 which is 0.42

Now for the final 15 percent
Same thing except this time its 0.15

15 percent of 0.42 is 6.3 percent, subtract that by 0.42 is 0.357

After the discounts were applied you’d only have to pay 0.357 or 35.7%

In order to find the total amount of discounts just subtract the amount we have to pay by the original which was 100 %. 100 - 35.7 = 64.3

Final net percentage is equivalent 64.3%

Can someone help me please!

Answers

The Answer is:

154 yeah

Which of these is the equation of a line with y-intercept (0,2) and slope 1/3

Answers

Answer: A

Step-by-step explanation:

The answer to this question is A. We know this because it is in slope-intercept form, there m is the slope and b is the y-intercept. In A, you can see that 1/3 is m and b is 2. This proves that A is the correct answer.

Is the number 3 squared rational?

Answers

Yes The square of any rational number is rational.
No it isn’t


there is always an odd exponent. So it could not have been made by squaring a rational number.This means that the value that was squared to make 2 (ie the square root of 2) cannot be a rational number. In other words, the square root of 2 is irrational.

7
Of the pets in the pet show, are cats of the cats are calico cats.
12

What fraction of the pets are calico cats?
Enter the fraction in simplest form.
of the pets are calico cats.

Answers

Answer:

7/12

Step-by-step explanation:

Number of calico cats : 7

Number of total cats : 12

Fraction of calico cats

No. of calico cats / No. of total cats7/12

give the value for b in terms of a and c from the following question -2(8a+10b)=6c

Answers

Answer:

b = (-4/5)a - (3/10)c

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

-2(8a + 10b) = 6c

8a + 10b = -3c

10b = -8a - 3c

b = (-8/10)a - (3/10)c

b = (-4/5)a - (3/10)c

The answer above is correct my dude,

Electric utility poles in the form of right cylinders are made out of wood that costs $11.07 per cubic foot. Calculate the cost of a utility pole with a diameter of 1.5 ft and a height of 40 ft. Round your answer to the nearest cent.

Answers

If the cylinders are made out of wood that costs $11.07 per cubic foot, the cost of the cylinder will be $782.10

How to calculate the volume of cylinder

The volume of a cylinder is expressed as:
V = πr²h

h is the height = 40ft

r is the radius  = 1.5/2 = 0.75ft

Substitute:

V = π(0.75)²(40)
V = 3.14 * (0.75)²(40)

V = 70.65 cubic foot

If the cylinders are made out of wood that costs $11.07 per cubic foot, the cost of the cylinder will be 11.07 * 70.65 = $782.10

Learn more on volume of cylinder here: https://brainly.com/question/9554871

Do these ratios form a proportion?

$30 per 46 pounds

$15 per 23 pounds

Yes or No

Answers

Particularly yes

Step-by-step explanation:

$30 per 46 and 30÷ 2 is 15 while 46÷2 is 23

therefore it is yes

Find the area of the figure. (Sides meet at right angles.)
2 ft
2 ft
5 ft
ft
8 ft
Bft
4 ft
8 ft

Answers

Answer:

44ft

Step-by-step explanation:

To find the answer, you need to first break down your shape. We can see that the 2 sides are identical so we can just multiply the area of on eof the sides by 2. The 2 sides equal 20 in all. Now lets look at the last section. To find an unknown side, we need to subract the 2 known sides. 8-5=3.   3x8=24

24+20=44

Hope this helps.

Answer:

44 ft²

Step-by-step explanation:

A1 = 2(5 x 2) = 20

A2 = 8 x 3 = 24

total = 20 + 24

      = 44 ft²

how much fabric will he need to create the tent

Answers

i need more information to answer
Since we don’t know how much fabric he has or how much he needs the answer is X

can a negative number be a real number

Answers

The real numbers include the positive and negative integers and fractions (or rational numbers) and also the irrational numbers.

This is the question I have on the picture that’s what it is

Answers

AB = 5 sqrt 2
BC = sqrt 65
AC = sqrt 145


Hope this helps.

QUICKLY PLEASE!!
18POINTS!
6(3p – 2) = 24

Answers

Answer:

p= 2

Step-by-step explanation:

So first you want to distribute the 6 to 3p-2 which basically means multiply

6(3p – 2) = 24

6 times 3p is 18 and 6 time -2 is -12

* remember a negative and a positive equal a negative*

18p-12=24

you want to get 18p by itself, so in order to do that you can add 12 to both sides because if you add 12 on the left side it cancels out -12 and whatever you do to one side you have to do it to the other so add 12 to 24 which is 36

18p = 36

since you want to get p by itself you divide p on both sides so it can cancel out 18 and 36/18 is 2

so p = 2

if you are wondering why i divide it and not subtract or add it is because 18 and p are stuck together so you have to divide but if it  was like 18 + p you can subtract because 18 and p arent together

University of Kentucky's Field goal kicker made 25 out of 28 field goals last season. What was his percentage of accuracy?

I'm not so smart okay -_-

Answers

percentage of accuracy: 89.3%

[tex]\sf accuracy = \dfrac{goals \ made}{total \ goals \ attempted}[/tex]

goals made : 25total goals attempted : 28

[tex]\hookrightarrow \sf accuracy = \dfrac{25}{28} *100[/tex]

[tex]\hookrightarrow \sf accuracy = 89.2857 \%[/tex]

[tex]\hookrightarrow \sf accuracy = 89.3 \%[/tex]

The fees for a computer course is increased from $ 30
to $ 36 per month. Find the percentage increase in
the fee
(a).15&%
(b).20%
(c).25%
(d).30%

Answers

Given :-

Original price = $ 30Increased price = $36

[tex] \\ \\ [/tex]

To find:-

Increased percentage

[tex] \\ \\ [/tex]

First let's find increase in price :-

Increase = Increased price - Original priceIncrease = 36 - 30Increase = $6

[tex] \\ [/tex]

[tex] \boxed{ \rm increase\% = \frac{increase}{original \: price} \times 100 }[/tex]

[tex] \\ \\ [/tex]

So:-

[tex] \\ [/tex]

[tex] \dashrightarrow \rm increase\% = \sf \dfrac{increase}{original \: price} \times 100 \\ [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow \rm increase\% = \sf \dfrac{6}{30} \times 100 \\ [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow \rm increase\% = \sf \dfrac{6}{3\cancel0} \times 10\cancel0 \\ [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow \rm increase\% = \sf \dfrac{6}{3} \times 10 \\ [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow \rm increase\% = \sf \cancel\dfrac{6}{3} \times 10 \\ [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow \rm increase\% = \sf 2\times 10 \\ [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow \bf increase\% = 20\%[/tex]

If 2x = 14, find the value of 6 - 7x

Answers

Answer:

-43

Step-by-step explanation:

x=7

Answer:

The Answer Is 49.

Step-by-step explanation:

2x = 14. 2x  means 2 x ??? = 14. but you can find what "X" is you can find it out by divideing, 2 divided by 14 is 7 so X = 7. To find 6 - 7x you know that is means 6 - (7 x 7). 7 x 7 is 49, 6 - 49 is -42. You answer is -43 and X means 7.

Suppose you obtain a $1300 T note with a 9% annual rate paid monthly with Matt Trinity in six years how much interest will be paid to you each month

Answers

Answer:

2

Step-by-step explanation:

2

https://brainly.com/question/5720183

From: rejkjavik

Ambitious

4.2K answers

10.3M people helped

Answer: simple interest  = $9.75

Step-by-step explanation:

given data:

Principle = $1300

annual rate  = 9%  

time = 6 year =

we know that simple interest is given as

Simple interest  

FOR ABOVE QUESTION

Time is 1 month

simple interest  

simple interest  = $9.75

Milo has 15 Dimes, 20 Nickels, 19 Pennies, 8 Quarters, and 1 Half Dollar. Which expression shows one way Milo can use some or all of these coins to get $5.00? A) 2(0.50) + 20(0.50) + 15(0.10) + 6(0.25) B) 3(0.50) + 20(0.05) + 15(0.10) + 6(0.25) C) 3(0.25) + 20(0.10) + 15(0.50) + 6(0.05) D) 6(0.25) + 20(0.05) + 15(0.01) + 1(0.50) E) 8(0.25) + 15(0.10) + 20(0.05)+ 1(0.50)

Answers

Answer:

E)

Step-by-step explanation:

in total milo has $5.19

A does not work because he does not have 22 half dollars, b does not work because he does not have 3 half dollars, c does not work because he does not have 20 dimes, D  does not work work because it only adds up to $3.15.

E works

Convert ; (a) 125% to decimal (b) 0.75 to percentage​

Answers

Answer:

125/100=0.125

(b) 7/10+5/100=75/100=75%

Answer:

a. 1.25

b. 75%

Step-by-step explanation:

Percentage to Decimal = Divide by 100

Decimal to Percentage = Multiply by 100

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