Students in Ms. Singh's class had the following scores on their last quiz.
85, 83, 68, 77, 72, 95, 87, 75, 73, 55, 82, 85, 91, 86, 92, 78, 85, 86, 79, 82
Part A
What was the median score of Ms. Singh's 20 students?
Median =
Answers
The median score of Ms. Singh's 20 students is 82.5
What are mean and median?The mean is the average value which can be calculated by dividing the sum of observations by the number of observations
Mean = Sum of observations/the number of observations
A Median represents the middle value of the given data when arranged in a particular order.
We are given the Students in Ms. Singh's class had the following scores on their last quiz.
First, we have to arrange the given data in an ordered manner. Thus:
55, 68, 72, 73, 75, 77, 78, 79, 82, 82, 83, 85, 85, 85, 86, 86, 87, 91, 92, 95
The median = the average of the 10th and 11th data
Median = (82 + 83) ÷ 2
Median = 165 ÷ 2
Median = 82.5
Learn more about mean and median;
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Related Questions
If x(x + y) = 3 and y(x + y) = 10, which of the following is a possible value of x + y?
(A) radical 7
(B) radical 13
(C) 6.5
(D) 7
(E) 13
With steps and explanation please.
Answers
Answer:
I believe that the answer is D: 7
How many do you want to bet nobody’s not gonna held me on this question
Answers
Answer:
-209
Step-by-step explanation:
Gerry drives her car at a constant rate of 60 miles/hour. How far will Gerry drive in 25 hours?
Answers
Answer:
The answer is 1500
Step-by-step explanation:
I multiplied 60 by 25
Answer:Its 1500
Step-by-step explanation:60 x 25
X+5/-2=x-10/7
What does x=
Answers
List all possible rectangles that can be formed by cross-sectional cuts within the prism, through 4 of the 8 vertices.
Answers
Answer:rectangular pyramid
Step-by-step explanation:The cross section is a rectangle. Note that not all cross sections of a rectangular prism are rectangles. Figure 4 shows the cross section of a right rectangular pyramid parallel to its base.
(i have no idea if this is right or not i learned this form my teacher.)
Answer:
you is
Step-by-step explanation:
B Mrs. Sayers made a rectangular fence
around the school vegetable garden so it
would not get destroyed by students. She
constructed a fence that was 4 feet long, 2 feet
wide, and 3 feet high. How much material did
she use to build her fence?
Answers
Answer:
Mrs. Sayers utilized 24 sq. ft material to build her fence
Step-by-step explanation:
length x width x height = volume
4 x 2 x 3 = 8 x 3 = 24
In “Changing Views of the Earth," why does the author ask about what would happen if people could travel where the weather actually happened? A. to entertain the reader with a story about space travel B. to explain why Copernicus would support a heliocentric model C. to explain why NASA needs more funding for research D. to introduce the next development of weather measuring devices
Answers
Answer:
A
Step-by-step explanation:
Use the graph to write a linear function that relates y to x.
Answers
Answer:
y=3
Step-by-step explanation:
Pls help me I’ll give out brainliest please dont answer if you don’t
Answers
Answer:
7x + 8 = 12 - 3x
Step-by-step explanation:
Answer:
10x=4 5x=2 x=2/5
Step-by-step explanation:
it's just basic algebra stuff
A square pool has a volume 4,086 cubic feet and depth 9 feet. A couple builds a fence 3.5 feet high around the pool. How many square feet of fencing surround the pool?
Answers
Answer:
Are they going to build the fence on the edge of the pool? How are they going to get into the pool? This question is illogical, however....
Step-by-step explanation:
A square pool is also wierd.
Volume Pool = side × side × depth
Volume Pool / depth = side² solve for side
side² = Volume Pool / depth
the fence is 3.5 feet tall
Fencing sqft one side = side × fence height for ONE side
Total Fencing = 4 × Fencing sqft one side
side² = 3464 ft³ / 8 ft
= 422 ft²
side = √422 ft²
= 20.54 ft
Fencing area one side = 20.54 × 3.5
= 71.899 ft²
Total fencing = 4× 71.899 ft²
= 287.6 ft² to the nearest tenth <-------------------- FINAL ANSWER
If the middle term of a quadratic trinomial is negative and the last term is negative, then
the sum of the factors for the middle term must be __
Answers
Answer:
Negative
Step-by-step explanation:
Years of Factoring:
What the problem tells us is that we have:
X^2 - 4x - 3
or something along these lines. If we factor this we get:
(X-4)(X+1)
The bigger inside factor has to be negative for these problems, because the third term is negative.
The sum of the middle term must give a negative value.
What is a quadratic equation?A quadratic equation is a polynomial with a degree of 2 or the maximum power of the variable is 2 in quadratic equations. It has two solutions as its maximum power is 2.
Given that If the middle term of a quadratic trinomial is negative and the last term is negative then the sum of the middle terms must give a negative value.
What the problem tells us is that we have:
x² - 4x - 3
Something along these lines. If we factor this we get:
(x-4)(x+1)
The bigger inside factor has to be negative for these problems because the third term is negative.
Therefore, the sum of the middle term must give a negative value.
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PLEASE HELP ASAP 1-5 THANK YOU!!!
Answers
Answer:
1a
2c
3c
4a
5d
hope this helps
Step-by-step explanation:
Answer:
1. $120
2. 8 hours
3. $15
4. $30/hr
don't know what #5 is
For geometry please help
Answers
The area of two similar triangles are 50dm^2 and 32dm^2. The sum of their perimeters is 117dm. What us the perimeters of each of these triangle?
Answers
Answer:
Perimeter of one triangle is 65 dm
Perimeter of other triangle is 52 dm
Step-by-step explanation:
Please remember the concept
If sides are in the ratio of a:b
Then the area in the ratio of [tex]a^{2} :b^{2}[/tex]
It is given sum of their perimeter is 117.
Let the small triangle has perimeter as x.
So, perimeter of big triangle is 117-x.
So, we can set up equation as
[tex]\frac{50}{32} =\frac{x^{2} }{(117-x)^{2} }[/tex]
Cross multiply
50(117-x)^2 =32x^2
Expand the left side
50[tex](13689 -234x+x^{2} )[/tex]=[tex]32x^{2}[/tex]
Distribute the left side
684450-11700x+[tex]50x^{2}[/tex]=[tex]32x^{2}[/tex]
Subtract both sides [tex]32x^{2}[/tex] and rewrite it [tex]18x^{2} -11700x+684450=0[/tex]
Solve this quadratic for x.
Divide both sides of the equation by 18 to simplify.
[tex]x^{2}[/tex]-650 x+38025=0
Now, if possible let's factor
Find two integers whose multiplication is 38025 but adds to -650.
-65 and -585 works.
So, we can rewrite it as
(x -65)(x-585) =0
Solve them using zero product property
x=65, x=585
So, x=65 works here.
So, perimeter of one triangle is 65 dm
Perimeter of other triangle is 117-65= 52 dm
(3/4)^-1 (4/3)^-2 exponent solving
Answers
Answer:
7/12
Step-by-step explanation:
3/4 - 4/3 = 7/12 or 0.583
b increased by 250% compared to 2b decreased by 50%
Answers
Answer:
$a decreased by 25% and $1.2a decreased by 40%
$a decreased by 25% = 0.75a
1.2a decreased by 40% = 0.6*1.2a = 0.72a
2) $b increased by 250% and $2b increased by 50%
$b increased by 250% = 2.5b
$2b increased by 50% = 1.5*2b = 3b
Answer:
b increased by 250% is equal to 2b decreased by 50%
$b increased by 250% > $2b increased by 50%
In which step did Carson make his first mistake?
1 - 4x = 2/3 (-2 + x)
Step 1: 1 - 4x = - 4/3 + x
Step 2: 1 = -4/3 + 5x
Step 3: 7/3 = 5x
Step 4: 7/15 = x
Answers
Answer: the first because he didn’t distribute the 2/3 with all the things in the parentheses
Step-by-step explanation: it’s supposed to be -4/3 + 2/3x the first step
HELP FOR BRAINIEST!!
Please write each equation in Slope-Intercept Form!
Answers
Answer:
y=-2/3x-3 is the equation in slope intercept form
Step-by-step explanation:
Hope this helps (:
Arthur took out a $12,000 personal loan. The monthly payments 0/
required based on the length of the term are shown in the table. Which is
a true statement about Arthur's repayment of the loan?
Answers
Answer:
Answer C, Arthur will pay about $918 less in interest if he chooses the 3-year loan.
Step-by-step explanation:
(370.53 x 12) x 3 = 13,339.08
(237.61 x 12) x 5 = 14,256.60
14,256.60 - 13,339.08 = 917.58 (then round up)
the answer above & it’s not 62
Answers
Answer:
Step-by-step explanation:
∠RSQ = 180°-90°-34° = 56°
∠PSQ = 180°-∠RSQ = 124°
∠RPQ = (180°-∠PSQ)/2 = 28°
A health insurance plan costs $150 each month plus an extra $25 for each doctor's visit. Which equation
below models the total yearly cost, c, of the plan
as a function of the number of doctor's visit, n?
Answers
Answer:
c=150+25n
Step-by-step explanation:
Given data
Monthly cost= $150
cost per doctor's visit= $25
Let the number of visits be n
Hence the total cost c can be modeled as
[tex]c=150+25n[/tex]
simplifique o seguinte produto notável: (2x-6)²
Answers
Answer:
Multiply first and add the negative sign and multiply all of it 2 times
Step-by-step explanation:
Answer:
4x +36
Step-by-step explanation:
= (2x - 6) * (2x - 6)
= 4x -12x -12x +36
= 4x +36
Algebra 1 ,pls answer and tell me as fast as you can
Answers
Find the area of the figure to the nearest hundredth.
Answers
Answer:
51.26 ft
Step-by-step explanation:
First find the area of the triangle:
a=1/2 base times height
a=(1/2)(6)(4)
a=12 ft
Now find the area of the circles:
a= pi times radius squared
a= pi times 2.5 squared
a=19.63 ft
19.63 + 12 = 31.63 ft
can someone answer these pls
Answers
Answer:
x = -4
Step-by-step explanation:
hope this helps you
Please help
I will give 40 points ☺️
Answers
Answer:
Its 62
Step-by-step explanation:
How much will 28 pencils cost if 7 pencils cost $1.82?
Answers
Answer:
7.28
Step-by-step explanation:
1.82*4= 4+3.20+.08= 7.28
Answer:
$7.28
Step-by-step explanation:
7 pencils:$1.82
28 pencils:$x
28/7=4 so multiply 1.82 by 4
$7.28
Mr. Dayton uses 14 cups of flour to make three identical loaves of bread.
How much flour is in each loaf?
to find out how much flour is in each loaf, use?
Answers
Answer:
10
Step-by-step explanation:
ll
Answer:
he used 4 1/6 cup of flour for each loaf I think
Step-by-step explanation:
Can someone help me with this ? Not really sure how to solve it, I'll give brainliest too !
Answers
Answer: y=5x+4
Step-by-step explanation:
Remember this
Slope-Intercept form: y=mx+b
m is the slope (5)
b is the y-intercept (4)
So your equation is
y=5x+4
Answer:
y = 5x + 4
Step-by-step explanation:
y - 4 = 5(x - 0)
That is point-slope form. I'm not sure if you want it in slope-intercept form, but the slope-intercept form of the equation is -
y = 5x + 4
Graph f(x)=4x2+20x+16
Answers
Direction: Opens Up
Vertex:
(
−
5
2
,
−
49
)
Focus:
(
−
5
2
,
−
783
16
)
Axis of Symmetry:
x
=
−
5
2
Directrix:
y
=
−
785
16
Select a few
x
values, and plug them into the equation to find the corresponding
y
values. The
x
values should be selected around the vertex.
Tap for more steps...
x
y
−
4
−
40
−
3
−
48
−
5
2
−
49
−
1
−
40
0
−
24
Graph the parabola using its properties and the selected points.
Direction: Opens Up
Vertex:
(
−
5
2
,
−
49
)
Focus:
(
−
5
2
,
−
783
16
)
Axis of Symmetry:
x
=
−
5
2
Directrix:
y
=
−
785
16
x
y
−
4
−
40
−
3
−
48
−
5
2
−
49
−
1
−
40
0
−
24
image of graph