Answer:
35%
What is a percentage?
A percentage is a way of representing how much of a whole is present. Like a decimal or a fraction, a percentage is another form of showing these ratios and portions.
Finding Necessary ValuesFrom the chart, we need to find how the total number of female students and the total number of male students.
Female
[tex]18+12=30[/tex]
Male
[tex]5+15=20[/tex]
Solve - Female Students with Pizza Preference
First, take the number of female students that prefer pizza and divide it by the total number of female students.
[tex]\displaystyle \frac{18}{30}[/tex]
[tex]\displaystyle \frac{3}{5}[/tex]
Convert the fraction into a decimal by using a calculator.
[tex]\displaystyle \frac{3}{5} = 0.6[/tex]
Then, convert the decimal to a percentage by multiplying by 100.
[tex]0.6\times100=60\%[/tex]
The percentage of female students who preferred pizza is 60%.
Solve - Male Students with Pizza PreferenceTake the number of male students that prefer pizza and divide it by the total number of male students.
[tex]\displaystyle \frac{5}{20}[/tex]
[tex]\displaystyle \frac{1}{4}[/tex]
Convert the fraction into a decimal by using a calculator.
[tex]\displaystyle \frac{1}{4}=0.25[/tex]
Then, convert the decimal into a percentage by multiplying by 100.
[tex]0.25\times100=25\%[/tex]
The percentage of male students who preferred pizza is 25%.
Solve - Find the DifferenceFinally, subtract the percentage of male students who preferred pizza from the percentage of female students who preferred pizza.
[tex]60\%-25\%=35\%[/tex]
The final answer is 35%.
You randomly draw a marble from a bag, record is color, and then replace it. You draw a blue marble 11 out of 50 times. What is the experimental probability that the nes marble will be blue? Write your answer as a fraction, de mal, or percent. The experimental probabilty that the next marble will be blue is
Explanation:
This may seem like a trick question, but it's not. Your teacher simply wants to know how many times you got blue out of the number of times total. The numerator is the number of blue. The denominator is the number of total tries. The fraction 11/50 cannot be reduced because 11 and 50 share no common factors other than 1.
Notes:
11/50 = 0.22 = 22%The answer above applies to experimental probability only. The theoretical probability is likely different. We don't have enough info to compute the theoretical probability.HELP PLEASE READ THE IMAGE WILL GIVE BRIEANLIEANSTEINERER
Question 4 options:
5
7
3
6
Answer:
3
Step-by-step explanation:
because 12/4 = 3
now divide 9 by 3 so you get 9/3 = 3
PLEASE HELP ME WITH THIS!!!
Answer:
r = 9 units
Step-by-step explanation:
[tex] In\: \odot O, [/tex] QP is tangent at point P and OP is radius.
[tex] \therefore OP\perp QP[/tex]
[tex] \therefore m\angle OPQ = 90\degree [/tex]
So, [tex] \triangle OPQ[/tex] is a right angled triangle. Hence, OQ will be its HYPOTENUSE such that OQ = r + 32
Now, by Pythagoras theorem:
[tex] OQ^2 = OP^2 + PQ^2 [/tex]
[tex] \therefore (r + 32)^2 = r^2 + (40)^2 [/tex]
[tex] \therefore\cancel {r^2} + 64r + 1024 = \cancel {r^2} + 1600 [/tex]
[tex] \therefore 64r = 1600-1024 [/tex]
[tex] \therefore 64r = 576 [/tex]
[tex] \therefore r = \frac{576}{64}[/tex]
[tex] \therefore r = 9[/tex]
Answer 1 pointss. Brainly back
Answer:
5
Step-by-step explanation:
I believe that this is correct because 220 is divisible by 5, which means it has completed the pattern 44 times (220 divided by 5 is 44). So 221 means that it has completed it 44 times, and then starts it one more time with only the first number.
9. please please help me out ill mark you brainlist
Answer:
C. The scale factor is less than one.
Step-by-step explanation:
By definition, similar triangles have equal angles and proportional corresponding side lengths. Thus, A, B, and D are all mutually exclusive, leaving C the only possible answer. Upon further inspection, the scale factor is indeed greater than one (each side length is scaled by a factor of two, which is large than one)
AB is tangent to circle O if AO = 30 and bc = 48 what is AB
Answer: 72
Step-by-step explanation:
30+48=78
√78^2-30^2=
√5184=
72
If AO = 30, BC = 48 then, AB = 72.
What is tangent?"Tangent to a circle is the line that touches the circle at only one point."
"A tangent to a circle is always perpendicular to the radius of a circle."
For given question,
AB is tangent to circle.
Also, AO = 30, BC = 48
From figure, we can observe that,
AO = CO .......................(radius of circle)
⇒OC = 48
Also,
OB = OC + BC
⇒ OB = 30 + 48
⇒ OB = 78
We know, a tangent to a circle is always perpendicular to the radius of a circle.
⇒ AB ⊥ AO
This means, ΔAOB is right triangle.
Using Pythagoras theorem to right triangle AOB,
⇒ [tex](OB)^{2} = (AO)^{2} + (AB)^{2}[/tex]
⇒ [tex](AB)^2 = (OB)^{2} - (AO)^{2}[/tex]
⇒ [tex](AB)^2=(78)^2-(30)^2[/tex]
⇒ [tex](AB)^2=5184[/tex]
⇒ [tex]AB=\sqrt{5184}[/tex]
⇒ [tex]\bold{AB=72}[/tex]
Therefore, option (D) is the correct answer.
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Could u help me with these 3 questions? Ill mark brainly if its correct. :)
△WXY is a right triangle, and △WZY is an isosceles triangle where WY¯¯¯¯¯¯≅ZY¯¯¯¯¯. Which is the measure of ∠XYZ?
Answer:
61 degrees
Step-by-step explanation:
TRUST ME I JUST DID THE IMAGINE MATH LESSON. !!!!
The measure of ∠XYZ in right triangle is 90 degrees.
What is an isosceles right angled triangle?It has two equal sides, and those two equal sides make 90 degrees (right angle) internally. An isosceles triangle has two of its side length of same measure.
Let the considered isosceles triangle has two same lengthed sides of 'a' units.
Let its third side be of 'b' units.
Then, if we drop a perpendicular from the vertex joining similar sides to the opposite side, the opposite side is cut in half, each of length b/2 units.
We are given that;
A right triangle △WXY and △WZY
Now,
Let's label ∠WZY as α, so we have:
∠WZY = α
∠WYZ = α
Since the sum of the angles in a triangle is 180 degrees, we can find ∠WYX of △WXY:
∠WYX = 90 - ∠WXY
Now, we can use the fact that ∠WXY and ∠XYZ are complementary angles of a right triangle, so:
∠WXY + ∠XYZ = 90
Substituting ∠WYX for ∠WXY, we get:
∠WYX + ∠XYZ = 90
90 - ∠WXY + ∠XYZ = 90
∠XYZ = ∠WXY
Therefore, we can conclude that ∠XYZ is equal to ∠WYX, which is the angle opposite to the hypotenuse in a right triangle. So, we have:
∠XYZ = 90 degrees
Hence, in the given right triangle answer will be 90 degrees.
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Which expression is equivalent to ((32)4)3?
Answer:
D
Step-by-step explanation:
3*3 =9
9*9*9*9= 6561
6561*6561*6561*6561=282429536481
Therefore is equal to 81^6 because 81*81*81*81*81*81= 282429536481
What is the distance between the following points?
Answer:
[tex]\sqrt{85}[/tex] or 9.21954
Step-by-step explanation:
Use the distance formula to determine the distance between the two points.
[tex]d = \sqrt{(x_{2} -x_{1})^{2} + (y_{2} - x_{1})^{2} }[/tex]
d = distance
[tex](x_{1}, y_{1})[/tex] = coordinates of the first point
[tex](x_{2}, y_{2})[/tex] = coordinates of the second point
I need help with all odd numbers please
Answer:
5. a = 4
7. x = -8
9. x = -1
11. p = 1.1
13. x = -1
15. x = -4
Step-by-step explanation:
2.9a = 11.6
2.9a/2.9 = 11.6/2.9
a = 4
-3.7x = 29.6
-3.7x/-3.7 = 29.6/-3.7
x = -8
(x-5)(-3) = 18
(x-5)(-3)/-3 = 18/-3
x-5 = -6
x-5+5 = -6+5
x = -1
3.6 = -2p+5.8
3.6-5.8 = -2p+5.8-5.8
-2.2 = -2p
-2.2/-2 = -2p/-2
1.1 = p
2x+6 = -4x
2x+6-6 = -4x-6
2x = -4x-6
2x+4x = -4x-6+4x
6x = -6
6x/6 = -6/6
x = -1
21-6x = -11-14x
21-6x-21 = -11-14x-21
-6x = -14x-32
-6x+14x = -14x-32+14x
8x = -32
8x/8 = -32/8
x = -4
Answer:
5.) a= 4
7.) x= -8
9.)x= -1
11.) p= 1.1
13.) x= -1
15.) x= -4
Step-by-step explanation:
5.) divide 11.6 by 2.9a
7.)divide 29.6 by -3.7u
9.) Divide by sides by -3. simplify. Add 5 to both sides. then simplify again x= -1
11.) subtract 5.8 from 3.6 . you're left with -2p=-2.2 divide both sides by -2. you get p=1.1
13.)Subtract 6 from both sides. You get 2x= -4x-6. Add 4x to both sides. then divide -6 by 6 you get x=-1
15.) Simplify both sides of the equation, so add 14x to -6x +21 side, you get 8x= -32 then divide -32 by 8x you get -4
Please help will mark brainliest
Answer:
The answer is 36.9
Step-by-step explanation:
How do I solve these problems?
What is the value of x in the triangle?
Answer:
a. 10√2
Step-by-step explanation:
hey, just use Pythagoras theorem
h²=p²+b²=10²+10²=100+100=200
h²=200, h= √200 =√(100×2)=√100×√2=10√2
Please help I struggle with this
Answer:
1390
Step-by-step explanation:
The triangles are 8*15* 2 and that equals 240. now you have 3 rectangles so solve so 23*17 is one another is 17*23 and the last one is 16*23 and that all equals 1150. so now you add 240 and 1150= 1390
She drinks 70 ounces of water each day. Before her ride she drinks 14 ounces. What percent of water does she drink. Find an equivalent amount of water to 100 ounces.
Answer:
Percentage of water consumed = 20 %
Equivalent amount of water to 100 ounces = 20 ounces
Step-by-step explanation:
The total amount of water consumed by her daily = 70 ounces
The total amount of water consumed by her before ride = 14 ounces
Percentage of water consumed = total amount of water consumed by her before ride /total amount of water consumed by her daily * 100
Substituting the given values we get
[tex]\frac{14}{70} * 100\\\frac{100}{5} \\20[/tex]%
Equivalent amount of water to 100 ounces = 20 ounces
5) A bag contains eight red
marbles and six blue
marbles. You randomly pick
a marble and return it to the
bag before picking another
marble. What is the
probabilty that the first
marble you picked was blue
and the second marble was
red? Record your answer as
a decimal to the
thousandths place (three
places past the decimal).
Answer:
P(B,R) = 24.490%
Step-by-step explanation:
P(B,R) = 6/14 x 8/14 which can be simplified to become 12/49 or 24.490%
pls help me i dont know the awnser
Answer:
13/12
Step-by-step explanation:
make into inproper fraction then cross multiply then reduce to lowest terms. hope this helps
Answer:
Length of each stump is 2.167 feet
Step-by-step explanation:
8 2/3 divided by 4 is 2.166667
2.166667 simplified is 2.167
Find 789.81−474.928 . Express your answer in decimal form.
Answer:
314.882
Step-by-step explanation:
789.81 − 474.928 = 314.882
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what is the slope between the points (-3,-4) & (7,6)
Answer:
The slope is 1 I believe.
Answer:
The Slope is 1
Step-by-step explanation:
Slope (m) =
ΔY
ΔX
=
1
1
= 1
θ =
arctan( ΔY )
ΔX
= 45° =
1
4
π
ΔX = 7 – -3 = 10
ΔY = 6 – -4 = 10
Distance (d) = √ΔX2 + ΔY2 = √200 = 14.142135623731
Equation of the line:
y = x – 1
When x=0, y = -1
When y=0, x = 1
A hiker has 2 pairs of hiking shoes, 3 shirts, and 5 pairs of shorts to choose from. How does the number of combinations of shoes, shirts, and shorts change as the
hiker adds a new pair of shorts to his collection? Explain.
If the hiker adds
new pair of shorts to his collection, the new number of combinations is
which is
than
The original number of combinations is
the original number of combinations.
(Type whole numbers.)
Answer: 12
Step-by-step explanation:
There are 12 different combinations
If you base it off of the 2 pairs of shoes, each one goes over each shirt twice, and each pair of shorts will go over once
Pls help will mark brainliest
What is the vertex of the function f(x) = x2 + 12x?
O (-6, -36)
O (-6,0)
O (60)
O (6,-36)
Answer:
es la tercera amiga yo pienso
The vertex of the function f(x) = x² + 12x is,
⇒ Vertex = (- 6, - 36)
What is mean by Function?A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given that;
The function is,
⇒ f (x) = x² + 12x
Now, We can change the function into the form,
f (x) = (x - h)² + k
Where, (h, k) is vertex.
Here, The function is,
⇒ f (x) = x² + 12x
⇒ f (x) = x² + 12x + 36 - 36
⇒ f (x) = (x + 6)² - 36
⇒ f (x) = (x - (- 6))² + (- 36)
Hence, By comparing,
Vertex = (h, k) = (- 6, - 36)
Thus, The vertex of the function f(x) = x² + 12x is,
⇒ Vertex = (- 6, - 36)
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A company analyzed how inventory was affected during the first five hours after a commercial aired for its product. The relationship is shown on the graph below.
What happens to inventory as each hour passes?
A.
The inventory decreases by 20 units.
B.
The inventory decreases by 10 units.
C.
The inventory decreases by 5 units.
D.
The inventory decreases by 1 unit.
A spinner has 8-equal sections. Six of the sections are green. What is the probability that the spinner will land on green?
Answer:
3/4
Step-by-step explanation:
To find the probability of landing on green, we have to divide the number of sections that are green by the total number of sections
we have this as:
6/8 = 3/4
In Earth’s atmosphere, the speed of sound can be approximated using partial variation. The speed of sound is approximately 331 m/s at 0°C and approximately 343 m/s at 20°C.
Jenny yells out “Hello” in a canyon when the air
temperature is 10°C. It takes 1.4 s to hear her
echo. How far away is the wall of the canyon?
1 4/7 as an improper fraction.
The mix fraction as an improper fraction is 11/7.
We have,
Mix fraction:
1(4/7)
This can be simplified as an improper fraction:
= {(7 x 1) + 4} / 7
= (7+ 4) / 7
= 11/7
Thus,
The mix fraction as an improper fraction is 11/7.
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State the x- and y-intercepts of each equation
y= -2x + 7
Answer:
x-intercept(s): ( 7/ 2 , 0 )
y-intercept(s): ( 0 , 7 )
Step-by-step explanation:
Answer:
y = 7, x = 7/2
Step-by-step explanation:
y - intercept = 7
x - intercept = 7/2
This dot plot is not symmetric, and the data set has two
extreme values.
Which of these measures is the best measure of variability for the dot plot?
A. Mean
B. Interquartile range (IQR)
C. Mean absolute deviation (MAD)
D. Median
Answer:
b
Step-by-step explanation:
it says range and that varies and is different so it hold the most variability I think
Solve for x.
can someone answer this please