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
Fantom [35]
2 years ago
7

40 points and I will choose brainlyist below is the question.

Mathematics
1 answer:
ipn [44]2 years ago
7 0

Using proportions, the expected number of adults in Palm City whose main source of news is the internet or newspaper is of 19,413.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

From the table, the proportion of adults in Palm City whose main source of news is the internet or newspaper is found as follows:

p = (62 + 88)/(62 + 88 + 128 +24 + 38) = 0.4412.

Hence, out of 44,000 adults, the expected number is found as follows:

0.4412 x 44000 = 19,413.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

You might be interested in
If an open box has a square base and a volume of 115 in.3 and is constructed from a tin sheet, find the dimensions of the box, a
Karolina [17]
Let h = height of the box,
x = side length of the base.

Volume of the box is  V=x^{2} h = 115. 
So h = \frac{115}{ x^{2} }

Surface area of a box is S = 2(Width • Length + Length • Height + Height • Width).
So surface area of the box is
S = 2( x^{2}  + hx + hx)  \\ = 2 x^{2}  + 4hx  \\  = 2 x^{2}  + 4( \frac{115}{ x^{2} } )x
= 2 x^{2} + \frac{460}{x}
The surface are is supposed to be the minimum. So we'll need to find the first derivative of the surface area function and set it to zero.

S' = 4x- \frac{460}{ x^{2} }  = 0
4x = \frac{460}{ x^{2} }  \\  4x^{3} = 460  \\ x^{3} = 115  \\ x =  \sqrt[3]{115} = 4.86
Then h=  \frac{115}{4.86^{2}} = 4.87
So the box is 4.86 in. wide and 4.87 in. high. 

5 0
3 years ago
Read 2 more answers
Pls help me with this problem:( and I’ll be happy if you write steps for this
andreev551 [17]

Answer:

b/(b+a)

Step-by-step explanation:

(1/a)-(1/b) :[ (b²-a²)/ab²]

first  solve :

common denominator ab

(1/a)-(1/b)  = (b-a)/ab

[b-a/ab] : [(b²-a²)/ab²]

when divide fraction ( division sign turn to (×) and flip the second fraction(reciprocal):

[b-a/ab] × [ab²/ (b²-a²)]

then  simplify : ab²/ab = b

(b-a)×(b/b²-a²)    

factorize : b²-a² = (b-a)(b+a)

(b-a)×(b/(b-a)(b+a))  simplify : (b-a)/b-a = 1

[(b-a)(b)]/[(b-a)(b+a)

b/b+a

4 0
3 years ago
Which point represents the unit rate?
Dvinal [7]
Pretty sure the answer is C since the point is at 1 on the c-axis
7 0
3 years ago
will's hair was originally 7 inches long. He asked her hair dresser to cut 2/8 of it off. How many inches did he have cut off?
saw5 [17]
1.75  inches and how you get that is 7 Divided by 8 which equals 0.875<span> </span><span>then multiply that by 2 equaling 1.75</span>
4 0
3 years ago
If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them?
Alex777 [14]

Answer:

The answer is B (From the cup to the hand)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • A car factory produces 100 cars in a day. If c is the total number of cars produced in d days, which equation represents the num
    5·2 answers
  • Help me ASAP!!!<br><br> (64 ÷ -4) ÷ (-2)
    7·1 answer
  • What is from greatest to least 4.1,4.01,4.009,4.085?
    9·1 answer
  • Which is the best approximation for sqrt 55<br> A) 7<br> B) 7 2/5<br> C) 7 7/15<br> D) 8
    8·1 answer
  • Connor have six employees and Bob 41 uniforms for them if you wanted to give them the same number of uniforms so he doesn't have
    7·2 answers
  • The square root of 75 will result in an answer that is between what two whole numbers?
    5·1 answer
  • The volume of a cylinder is 375 pi m^3. if r= 5 m, find its height.
    13·1 answer
  • M00000000000000000aan
    6·1 answer
  • Madison is designing a new board game, and is trying to figure out all the possible outcomes. How many different possible outcom
    11·1 answer
  • The number of coffee bar on different streets of a NY city are 9, 18, 24, 9, 5,
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!