13. A certain town with a population of 100,000 has 3 newspapers: I, II, and III. The proportions of townspeople who read these papers are as follows: I: 10 percent I and II: 8 percent I and II and III: 1 percent II: 30 percent I and III: 2 percent III: 5 percent II and III: 4 percent (The list tells us, for instance, that 8000 people read newspapers I and II.) Find the number of people who read only one newspaper. How many people read at least two newspapers
Answer:
a) the number of people who read only one newspaper is 20,000
b) number of people read at least two newspapers is 12,000
Step-by-step explanation:
Given the data in the question;
A certain town with a population of 100,000 has 3 newspapers
a)Find the number of people who read only one newspaper
From the Venn-diagram illustrating the data in the question;
Number of that read only one paper will be;
=[ ([tex]I^{}[/tex]∩ [tex]II^{c}[/tex] ∩ [tex]III^{c}[/tex]) + ( [tex]I^{c}[/tex] ∩ [tex]II^{c}[/tex] ∩ [tex]III^{c}[/tex]) + ( [tex]I^{c}[/tex] ∩ [tex]II^{c}[/tex] ∩ [tex]III^{}[/tex]) ] × 100,000
= [ 1% + 19% + 0% ] × 100,00
= 20% × 100,000
= 20,000
Therefore, the number of people who read only one newspaper is 20,000
b) How many people read at least two newspapers;
Number of people read at least two newspapers will be;
= [ ([tex]I^{}[/tex]∩ [tex]II^{}[/tex] ∩ [tex]III^{c}[/tex]) + ( [tex]I^{}[/tex] ∩ [tex]II^{c}[/tex] ∩ [tex]III^{}[/tex]) + ( [tex]I^{c}[/tex] ∩ [tex]II^{}[/tex] ∩ [tex]III^{}[/tex]) + ( [tex]I^{}[/tex] ∩ [tex]II^{}[/tex] ∩ [tex]III^{}[/tex]) ] × 100,000
= ( 7% + 1 % + 3% + 1% ) 100,000
= 12% × 100,000
= 12,000
Therefore, number of people read at least two newspapers is 12,000
Write an expression that is equivilant to 5(6+y)
Answer:
6(5+y) or (30+y)
Step-by-step explanation:
You can just switch around the variables and numbers but keep the equation the same or simplify
Answer: 30+5y
Step-by-step explanation: Which is simplifying
At a student council meeting, there was a total of 65 students present. Of those students, 35 were female.
a. By what percent is the number of females greater than the number of males? Round your answer to the nearest tenth.
35 divided by 65
b. By what percent is the number of males less than the number of females? Round your answer to the nearest tenth.
Answer:
a = 50 b = 50
Step-by-step explanation:
a. 35/65=0.53 - rounded to the nearest tenth would equal to 50.
b.
65-35=30
30/65 = .46
rounded to the nearest tenth equals to 50.
Hope this helps!
Anyone know the answer?
Mekala has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Mekala's Jumble has 4 techno songs, 2 country songs, and3 jazz songs on it. Mekala plans to listen to 270 songs.
Complete the following statement with the best prediction.
Mekala will listen to...
Please choose from one of the following options.
a) Exactly 60 country songs
b) Close to 60 country songs but probably not exactly 60country songs
c)Exactly 210 country songs
d)Close to 210 country songs but probably not exactly 210 country songs
Answer:
answer is B
Step-by-step explanation:
Find the solutions to the equation x^2 + 9x - 10 = 5x + 11
A student started out poorly on his first mathematics test. However, he doubled his score on each of the next two tests. The third test grade was 100. What was the student’s average test grade? Round to the nearest tenth.
Which of the following is an arithmetic sequence?
O 0, 2, 4, 6, ...
1, 2, 4, 8,...
1,4, 8, 13,...
Answer:
0,2,4,6
Step-by-step explanation:
it adds 2 each time
A number line graph is shown:
A number line is shown from negative 8 to 8 at increments of 1. A circle is shown at negative 3. The entire portion of the number line to the right of negative 3 is shaded
Based on the graph, which inequality is correct for a number that is to the right of −3?
A) 1 < −3
B)2 < −3
C)−2 > −3
D)−4 > −3 please help I am not good at this (10 points)
Answer:
C is the correct answer. - 2 is > - 3 because the lower the number of negative number is bigger
I don’t understand how to find SN? Can someone help please?
BRAINLYEST TO WHO EVER IS RIGHT!!!
How many zero pairs can be created in the model below?
O- 0
O- 1
O- 2
O- 3
Answer: -x because its more than one zero
Step-by-step explanation:
The side Length of the base of a square pyramid is 30 centimeters.The height of the pyramid is 45 centimeters. What is the volume of the pyramid in cubic centimeters?
Answer:
v=l×h
l=30
h=45
v=30×45
v=75cm
The triangles are similar. Find side length x.
Answer:
Step-by-step explanation:
which expression is equivalent to
HELPPP DUE IN FEW MINS ILL GIVE BRAINLESS
Answer:
C. Find the sum of all the values and then divide by the number of values
Step-by-step explanation:
A snail moves 3/8 of a foot in 1/5of an hour. What is the snail's speed in feet per hour?
A) 3/40 feet per hour
B) 1 5/8 feet per hour
C) 1 7/8 feet per hour
D) 2 7 /8 feet per hour
Answer:
B) 1 5/8 feet per hour is your answer
3/8foot=1/5hour
15foot =8hour
1 foot =8/15 hour
Please help I’m being timed
Answer:
A. 60 because 70 +50 =120 and 180 - 120 is 60 so your answer is 60
Step-by-step explanation:
60
Solve for x
-14 + 6b + 7 - 2b = 1 + 5b
b = -8
Hope I helped!!!!!!
Which of the following words can be used to describe the triangle?
Answer:
It's a because an isosceles is a triangle!
The point P (5, -1) is rotated 270° counterclockwise around the origin.
What are the coordinates of the resulting point P prime?
Answer:
(-1,-5) Hopes this helps you :)
Step-by-step explanation:
The circumference of a circle is 97 m. Find its diameter, in meters.
Answer:
C/π = 97 / π ≈ 97 / 3.141592653589793 ≈ 30.876058959827695 m (you can round as you please)
Solve 3^x=42. Round to the nearest hundredth
Answer: x=3.40
Step-by-step explanation: apply exponent rule xln(3)= ln(42)
solve xln(3)=ln(42): x=ln(42)/ln(3) (fraction form)
(decimal) 3.40217... round it to the nearest hundreth= 3.40
I do not know if this is correct.
Choose the graph which represents the solution to the inequality:
3x + 8 ≥ 11
Answer:
x>1
Step-by-step explanation:
jayfeather friend me
Change 6 1/8 from a mixed number to an improper fraction
Answer:
5 9/8
Step-by-step explanation:
simplify 4x-7y-5n+6 .
Answer:
The answer is -5n + 4x - 7y + 6
Step-by-step explanation:
Simplify the expression.
Hoped this helped!
Brainly, Please?
"Everyone has a financial plan, but not everyone has financial goals." Explain what you think this
Answer:
Everyone has financial a plan, but not everyone knows what to do to make the plan work. Planning is different from putting it into action.
Use the Distributive Property to express 18 +24
3(6+9)
6 (3+4)
6(2 + 5)
9(2+3)
what is the surface area of this shape?
Answer:
135.42 yd²
Step-by-step explanation:
Surface area of triangular prism = 2(BA) + PH
Where,
Triangular base area (BA) = ½bh = ½*4*3 = 6 yd²
Perimeter of triangular base (P) = 4 + 3.61 + 3.61 = 11.22 yd
Height of prism (H) = 11 yd
Surface area = 2(6) + 11.22 × 11
= 12 + 123.42
Surface area = 135.42 yd²
Evaluate X + y? by replacing x with - 0.5 and y with - 0.25
Answer:
-0.75Step-by-step explanation:
x = -0.5y = -0.25x + y = (-0.5) + (-0.25) = -0.5 - 0.25 = 0.75MARK ME AS BRAINLIST1/4x + 2/5x = 39
0.6x + 0.5 = 2.9
3/5x = 9
whoever can give me the answer with work will get branliest please help asap
Answer:
(a) [tex]x = 60[/tex]
(b) [tex]x = 2.64[/tex]
(c) [tex]x=15[/tex]
Step-by-step explanation:
Solving (a):
[tex]\frac{1}{4}x + \frac{2}{5}x = 39[/tex]
[tex]\frac{x}{4} + \frac{2x}{5} = 39[/tex]
Take LCM
[tex]\frac{13x}{20} = 39[/tex]
Multiply through by 20
[tex]20 * \frac{13x}{20} = 39 * 20[/tex]
[tex]13x = 39 * 20[/tex]
[tex]13x = 780[/tex]
Solve for x
[tex]x = 780/13[/tex]
[tex]x = 60[/tex]
Solving (b):
[tex]0.6x + 0.5x = 2.9[/tex]
This gives:
[tex]1.1x = 2.9[/tex]
Solve for x
[tex]x = \frac{2.9}{1.1}[/tex]
[tex]x = \frac{29}{11}[/tex]
[tex]x = 2.64[/tex]
Solving (c):
[tex]\frac{3}{5}x = 9[/tex]
Multiply both sides by [tex]\frac{5}{3}[/tex]
[tex]\frac{5}{3}*\frac{3}{5}x = 9 * \frac{5}{3}[/tex]
[tex]x = 9 * \frac{5}{3}[/tex]
[tex]x = \frac{9 *5}{3}[/tex]
[tex]x = \frac{45}{3}[/tex]
[tex]x=15[/tex]