Answer:
1/60
Step-by-step explanation:
50+30+40=120 (take all the students and add them together.)
2/120 (you only want 2 seventh graders)
simplified is 1/60
The probability that Quincy draws two-seventh-grade students is 0.061, or 6.1%.
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
There are a total of 50 + 30 + 40 = 120 students who bought tickets for the raffle.
Quincy draws two names without replacement, which means that the total number of possible outcomes is given by the combination formula.
Total number of outcomes = C(120, 2) = 7,140
Now, we need to find the number of outcomes in which Quincy draws two-seventh-grade students.
Let us calculate the number of ways in which Quincy can choose 2 students from the 30 seventh-grade students
Number of ways to choose 2 seventh-grade students = C(30, 2) = 435
Therefore, the probability of Quincy drawing two-seventh-grade students is:
Probability = Number of desired outcomes / Total number of outcomes
Probability = C(30, 2) / C(120, 2)
Probability = 435 / 7,140
Probability ≈ 0.061
Hence, the probability that Quincy draws two-seventh-grade students is 0.061, or 6.1%.
To learn more on probability click:
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Find the circumference of the circle below. Use 3.14
Answer:
b
Step-by-step explanation:
C=2πr=2·π·22 =138.16cm
What is the area of the figure?
No links, those are obvious scams.
Hi! Please help on this question (you have to use the Pythagorean theorem method) and explain the steps *giving brainliest*
Answer:
The diagonal length is 50.
Step-by-step explanation:
Square the lengths of the legs: (30 yd)^2 + (40 yd)^2 and add these squares together. Taking the square root of this sum produces the length of the diagonal: d = √(900 + 1600) = √2500 = 50.
The diagonal length is 50.
prove this qsn plzz and fast
Step-by-step explanation:
Let use the first of the medians. Medians AX.
Median AX is the midpoint of BC so our median is
[tex] \frac{1}{2} (b + c) - a[/tex]
Let use the second median.
Median BY is the midpoint of AC so our median is
[tex] \frac{1}{2} (a + c) - b[/tex]
Let use the final median.
Median CZ is the midpoint of AB so our median is
[tex] \frac{1}{2} (a + b) - c[/tex]
Now add all them up
[tex] \frac{1}{2} (b + c ) - a + \frac{1}{2} (a + c) - b + \frac{1}{2} (a + b) - c[/tex]
[tex] \frac{1}{2} b + \frac{1}{2} c - a + \frac{1}{2} a + \frac{1}{2} c - b + \frac{1}{2}a + \frac{1}{2} b - c[/tex]
Add like terms.
[tex] \frac{1}{2} b + \frac{1}{2} b - b = 0[/tex]
[tex] \frac{1}{2} a + \frac{1}{2} a - a = 0[/tex]
[tex] \frac{1}{2} c + \frac{1}{2} c - c = 0[/tex]
[tex]0 + 0 + 0 = 0[/tex]
So
AX+BY+CZ=0
3. Determine the lateral and total surface
area of the pyramid.
A pretzel maker was interested in knowing the number of pretzels in each bag is sold. The results of the research are shown in the box and whisker plot. What is the range in the number of pretzels? Please help
Answer:
23 pretzels
Step-by-step explanation:
The range value is obtained by taken the difference between the maximum and minimum values ;
The range = maximum - minimum
From the box and whisker plot attached ; the maximum value = 68
Minimum value = 45
Hence, the range in the number of pretzels :
68 - 45 = 23
Answer:
22
Step-by-step explanation:
Subtract the minimum (44) and the maximum (66) the answer to this question is 22
sam has eight shells and thandeka has 12 shells .what is the ratio ,in simplest form ,of Sam's shells to thandeka's shells?
[tex]576 \div 12 \\ \ \: = [/tex]
Answer:
I think that's the answer
Ratios are used to re;ate quantities of different measurements
The ratio of Sam's shells to thandeka's shells is 2:3
The quantity is given as:
Sam = 8 shells
Thandeka = 12 shells
To represent the given parameters as ratio, we have:
Ratio = Sam : Thandeka
So, we have:
Ratio = 8 : 12
Divide by 4
Ratio = 2 : 3
Hence, the ratio of Sam's shells to thandeka's shells is 2:3
Read more about ratios at:
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Mhanifa can you please help? I need this done asap and i will mark brainliest!
Answer:
#4
Exterior angles of a polygon sum to 360
94 + 56 + 4.5x + x + 1.5x = 360150 + 7x = 3607x = 210x = 30#5
Sum of interior angles of a pentagon is:
(5 - 2)*180 = 540Sum of interior angles of a given pentagon:
72 + 3x + 89 + 99 + 2x = 5405x + 260 = 5405x = 280x = 280/5x = 56
Lacey set a goal to walk a mile each day. How many steps does she need to take each day to walk one mile?
Answer:
Step-by-step explanation:
1 mile = 2000 steps
An average person has a stride length of approximately 2.1 to 2.5 feet. That means that it takes over 2,000 steps to walk one mile
Fill in the table using this function rule.
y = -5x+1
Fill out the y values
A water jug weighs 5 kilograms. What is the volume of the water in the jug?
Answer:
IF the jug is full and IF the 5 kg does not include the jug, then:
5 kg of water = 1.32 gallons
If you want it in metric form: 5 kg = 5 liters
Step-by-step explanation:
one gallon = 3.785 kg
5 kg/3.785 kg per gal = 1.32 gallons
in metric form:
1 kg of water = 1 liter, so:
5 kg = 5 liters
Answer: I'm just answering so that other guy can get brainist
Step-by-step explanation: But here is a meme
Please Help With Math Questions, I keep getting people with wrong answers answering. SO please oh please help me if you know the answers
Answer:
which question that you want
Search your home for a rectangular prism. Some examples are a cereal box, a CD case, or a coffee table. Measure your prism using appropriate units, such as inches, centimeters, or feet.
Complete the following. Show all work for calculations.
List the dimensions of your box. Be sure to include the units (in, cm, ft, etc.).
Describe the shape of the cross section when the box is cut parallel to the base.
What is the surface area of the box?
What is the surface area of the box if it is scaled up by a factor of 10?
What is the volume of the box?
What is the volume of the box if it is scaled down by a factor of
1
10
?
ill give 40 points and brainlysest please i really need this please
Answer:
541/2 square in I hope this helps
Step-by-step explanation:
i hope this helps if it does can i get brainlists
Answer:
Rectangular prism
I chose a box of cereal.
Part 1)List the dimensions of your box. Be sure to include the units (in, cm, ft, etc.).
Length: 20 cm
Width: 8 cm
Height: 32 cm
Part 2).
Describe the shape of the cross-section when the box is cut parallel to the base.
The shape of the cross-section would be a rectangle in dimensions.
20 cm x 8 cm
Part 3)
What is the surface area of the box?
surface area=2*area of the base + perimeter of the base*height
area of the base=20*8=160 cm²
perimeter of the base=2*[20+8]-----> 56 cm
height=32 cm
surface area=2*160+56*32------> 2,112 cm²
the answer part 3) is
2,112 cm²
Part 4)
What is the surface area of the box if it is scaled up by a factor of 10?
we know that
surface area of the larger box =[scale factor]²*surface area original box
scale factor=10
surface area original box=2,112 cm²
so
surface area of the larger box=10²*2,112-----> 211,200 cm²
the answer part 4) is
211,200 cm²
Part 5)
What is the volume of the box?
volume of the box = L*W*H 20*8*32-5,120 cm³
the answer Part 5) is
5,120 cm³
Part 6)
What is the volume of the box if it is scaled down by a factor of 1/10?
we know that
the volume of the smaller box =[scale factor]³volume original box
scale factor=1/10
volume original box=5,120 cm³
so
volume of the smaller box =[1/10]³*5,120 5.12 cm³
the answer part 6) is
5.12 cm³
The length is 6 in., the width is 2 in., and the height is 16 in.
Use the Order of Operations to evaluate this expression
(-2+1square2) +5 (12/3) -9
Type the correct answer in the box. Use numerals instead of words.
The answer when simplified gives the expression as 11.
What is the BODMAS rule?According to the BODMAS rule, the brackets have to be solved first followed by powers or roots (i.e. of), then Division, Multiplication, Addition, and at the end Subtraction. Solving any expression is considered correct only if the BODMAS rule or the PEMDAS rule is followed to solve it.
Given here the expression as -2+1²×2+5×12/3 -9=0+4×5-11
= 11
Hence, The answer when simplified gives the expression as 11.
Learn more about the BODMAS rule here:
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this is old work i forget how to do it
Answer:
1.101, 1.001, and 0.113
Step-by-step explanation:
the first on is the highest
plz leave a like and brainlest!! i need 10 to ask a quistion!!!
Answer:
Tenths place is a zero
↓
0.113 1.001 1.101
↑
One's place is a zero
PLEASE HELP ME! i need right answers tho -_- please
8/10 .................................................
Can someone help with 6,7,8,9?
Answer:
What are the 4 questions, because the file does not work?
Step-by-step explanation:
Urgent help needed
please solve any one of these
124−−−√? to the nearest number
Answer:
11
124√= 11.135
I rounded it to the nearest number, 11
plz mark me as brainliest.
Find the slope of the line.
Will give brainiest if correct.
Answer:
1,2
Step-by-step explanation:
Answer:
The slope of the line is (2)
Step-by-step explanation:
Good luck ^_^
PLEASE ANSWER NUMBER 4 NO BS PLEASE HELP ME I WILL GIVE BRAINLIEST ANSWER
Answer:
A'(1,-2)
L'(-3,-5)
T'(3,-1)
Reflection:
A'(-1,-2)
L'(3,-5)
T'(-3,-1)
Step-by-step explanation:
If point P, located at (6, -2), is rotated 270
counterclockwise about the origin, what
are the coordinates of its image, P'?
A. (6,2)
B. (2,6)
C. (-2,-6)
D. (-2,6)
Help!!!!!!!!!
Answer:
hey i think it is -2,-6
Step-by-step explanation:
what is the circumference of circle P shown below
Answer:
8π units
Step-by-step explanation:
The circumference of a circle is calculated by using the following formula
2 × r × π (r: radius)
2 × 4 × π = 8π
Which of the following is a trinomial with a constant term ?
Answer:
A
Step-by-step explanation:
just took the test
The sum of -9 and 18/2
Answer:
0
Step-by-step explanation:
Sum means addition so:
-9 + 18/2
(18/2 = 9)
-9 + 9
0
Answer: 0
Step-by-step explanation: The answer I got was 0. I'm assuming that 18/2 is 18 divided by 2. 18 divided by 2 is 9 and if you add a positive and a negative its like subtracting. 9-9=0 so the answer is 0.
Meljer is selling a 9.25 oz bag of Doritos for $3.50. What is the cost per ounce of Doritos? Round your answer to the nearest penny (hundredths of a dollar).
Answer:
0.38
Step-by-step explanation:
We will use ratios:
[tex]\frac{9.25}{3.5} =\frac{1}{x} \\\\9.25x=3.5\\x=0.38[/tex]
Jon is buying gas for his car. The cost of gas varies directly with the number of gallons of gas. If
he pays $8.75 for 5 gallons of gas, how much would it cost for 32 gallons?
Answer:
56 gallons of gas
Step-by-step explanation:
Jon paid $8.75 for 5 gallons.
So how much does 1 gallon cost?
=> 5 gallons = $8.75
=> 5/5 gallons = $8.75/5
=> 1 gallon = $1.75
So how much does 32 gallons cost?
=> 32 gallons = 32 * 1.75 = $56
help fast pls .. Fill in the blanks to complete the table. (10 pts: 0.5 pt for each blank)
Is there a word bank or anything.
I can't be sure so I just did what I could.
Under her cell phone plan, Lily pays a flat cost of $40 per month and $4 per
gigabyte. She wants to keep her bill under $60 per month. Write and solve an
inequality which can be used to determine x, the number of gigabytes Lily
can use while staying within her budget.
Answer: x < 5
Step-by-step explanation: 4x + 40 < 60
what is the discriminant of the polynomial below 2x^2+5x-8
A. 89
B. -39
C. 31
D. -59
Answer:
Hi! The answer to your question is A. 89
Step-by-step explanation:
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☆Brainliest is greatly appreciated!☆
Hope this helps!!
- Brooklynn Deka