The table displays the scores of students on a recent exam. Find the mean of the
scores to the nearest ioth.
Score Number of Students
60
2
65
1
70
8
75
6.
80
6
85
3
90
4
Answers
Answer: The answer is 75 and since you have to round it up to the nearest tenth the answer would be 80.
Step-by-step explanation:
You first have to add all the score numbers: 60, 65, 70, 75, 80, 85, 90
Then, you will get 525
Now, divide that by how many scores there are which is 7 and you get 75
Finally, 75 rounded to the nearest tenth is 80!
You're very welcome!!!
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Related Questions
La fracción 2/12 es equivalente a
A. 0.16
B. 0.166
C. 0,1666
D. 0,1666...
Answers
Is A espero que esto ayude :)
Help me please! (easy question) and (15 points) Brainliest if right!!!
Answers
Answer:
D. y = -1/2x + 18.5
Step-by-step explanation:
First you want to find the slope of the line that these coordinates make. To do this, use the slope formula: (y₂ - y₁) / (x₂ - x₁). I will use the first and last points.
(1, 18) & (6, 15.5)
Plug in these values:
(15.5 - 18) / (6 - 1)
Simplify the parentheses.
= (-2.5) / (5)
Simplify the fraction.
-2.5/5
= -1/2
This is your slope.
Now plug this into the standard slope-intercept equation: y = mx + b
y = -1/2x + b
b is the y-intercept, or the value of y when x = 0.
To find b, we want to plug in a value that we know is on this line: in this case, it is (1, 18). Plug in the x and y values into the x and y of the standard equation.
18 = -1/2(1) + b
To find b, multiply the slope and the input of x (1)
18 = -1/2 + b
Now, add 1/2 to both sides to isolate b.
18.5 = b
Plug this into your standard equation.
y = -1/2x + 18.5
This is your equation.
Hope this helps!
Mike pays $8,000 in property taxes, but receives a 28% tax deduction for it. What is Mike’s net expense for property taxes
Answers
Answer:
the answer is he pays 2,240 in property taxes now
Steps:
8,000 * .28 = 2,240 —> tax deduction
8,000 - 2240 = 5,760
Tip: Move the decimal place two spots to the left to make a percent a decimal.
will give brainliest
Answers
Answer:
904.32
Step-by-step explanation:
find the volume of the cylinder using V=πr^2h
V = (3.14)(6)^2(8)
V = 904.32
Will give brainiest to correct answer
3. BestBuy is offering 30% off all items. If x is the original purchase prices, select
ALL of the expressions which represent the final price with the discount
B. 0.7x
A 13x
C. X
D. X -0.3x
EX+ 0.3%
Answers
Answer:
B and D
Step-by-step explanation:
simple math :)
Answer:
B and D
Step-by-step explanation:
Just took the test
Please follow me
Choose the equation of the line that is parallel to the y-axis.
x=-2, x+y=0, x=y, y=2
Answers
Answer:
x = -2 is the answer. Brainly requires a 20 character answer for some reason so im writing this
Answer:
x = - 2
Step-by-step explanation:
A line parallel to the y- axis is a vertical line with equation x = c
c is the value of the x- coordinates the line passes through.
The only equation in this form is
x = - 2
14
6
4
2
Y
-2
-2
-4
Answers
Answer:
Step-by-step explanation:
Pls answer this question for ill give brainliest
Quadrilateral ABCD is a rectangle. BE=2x+1 and AC=6x−12 . What is BE ?
Answers
Answer:
BE=15
Step-by-step explanation:
Since E is the center, BE=2x+1
And AC is 6x-12 with E being a midpoint.
Since AC is 2 segments and BE is only 1 then you multiply 2x+1 by 2 so that
you can find x. You multiply 2x+12 by 2 because E is the midpoint so that means ED is the same value as BE
6x-12=4x+2
BD=AC
6x-4x-12=2
2x=2+12
2x=14
x=7
BE= 2x+1
2(7)=14+1=15
can someone help?.............
Answers
Answer:
Step-by-step explanation:
The sum of the three interior angles of a triangle is always 180.
Knowing this, we can set up an equation for the given angles:
[tex]8x + 10x + 12x = 180[/tex]
[tex]30x = 180[/tex]
[tex]x = 6[/tex]
Knowing this, we can now plug it into the angles:
[tex]8x[/tex]
[tex]8 * 6[/tex]
[tex]48[/tex]
[tex]10x[/tex]
[tex]10 * 6[/tex]
[tex]60[/tex]
[tex]12x[/tex]
[tex]12 * 6[/tex]
[tex]72[/tex]
the perimeter of a semicircle is 108 cm what is the perimeter of the square drawn on the diameter of the semicircle
Answers
Answer:
Step-by-step explanation:
the perimeter of the semi-circle would be the diameter plus the circumference of half of the circle.
They want to know the perimeter of a square using the diameter of the sem-circle as ONE side, so the perimeter of the square would be 4 times the ONE side.
We should recall:
diameter = 2 times the radius circumference of a cirlce = 2π r
How do we find the diameter of the of the semi circle?
The perimeter of the semi circle is given as 108 cm
Perimeter of the semicirle = 2r + π r diameter plus semi circumference
108 = r ( 2 + π) factor out the r and solve for r
108 / (2 + π) = r divide both sides by ( 2 + r)
Now we know r, the perimeter of the squqre is 4 times 2r or 8r
perimeter of square = 8 [ 108 / (2 + π) ] π I used 3.14
= 864 / 5.14
= 168.1 cm I got rounded to nearest tenth
When I re-checked by work I found a few math, logic and calculation errors. Please re-check my answer for any more mistakes.
Laura wants to cover a box with fabric.
• The box is in the shape of a rectangular prism.
• It measures 15 in. long, 11 in. wide, and 24 in. tall.
What is the total surface area of the exterior of the box that Laura will cover
Answers
Answer:
1968 in
Step-by-step explanation:
times the width and height, then times the answer by 2.
times the length and height, then times the answer by 4.
add both answers
you get 1968in
Answer:
hey so the answer is 1,578 inches square
Step-by-step explanation:
.
if 6x+4=20-2x, then 8x=?
Answers
Answer:
8x = 16 x=2
Step-by-step explanation:
Answer: Simplifying
8x = 0
Solving
8x = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '8'.
x = 0
Simplifying
x = 0
Step-by-step explanation:
What’s the size of angle AED
Answers
Answer:
173
Step-by-step explanation:
What is the area Of This Shape? Please Sumbody Help
Answers
Answer:
i think its 102
Step-by-step explanation:
find the 10th term of 3, 9 /2 , 27/4
Answers
Answer:
Step-by-step explanation:
the nth term of a geometric sequence is
∙
x
a
n
=
a
r
n
−
1
where a is the first term and r the common ratio
r
=
a
2
a
1
=
a
3
a
2
=
...
...
=
a
n
a
n
−
1
here
a
=
3
and
r
=
9
3
=
27
9
=
3
⇒
a
10
=
3
×
3
9
=
3
10
=
59049
Which is a measure of center of a distribution?
O A. mean
OB. range
O C. variance
OD. standard deviation
Answers
chris has 50 books on his shelves. Jenny has 12% more books. How many books has jenny got
Answers
Answer:
A number
Step-by-step explanation:
maths
jenny has 56 books
Step-by-step explanation:
So she has six more or 12% more
In ΔTUV, the measure of ∠V=90°, TU = 24 feet, and VT = 15 feet. Find the measure of ∠U to the nearest degree.
Answers
Answer:
39
Step-by-step explanation:
Answer:
39
Step-by-step explanation:
sinU=opp/hyp= 15/24
sinU=15/24
U=sin^-1(15/24)
U=38.682=39
95 students and 57 are girls what is the percent of the girls
Answers
Answer:
60%
Step-by-step explanation:
57/95 = 0.6 = 60%
Hope that helps!
-Sabrina
57 girls/ 95 total students x 100% =
60%
.Meiling needs 5 dollars 35 cents to buy a ticket to a show. In her wallet, she finds 2 dollar bills, 11 dimes, and 5 pennies. How much more money does Meiling need to buy the ticket?
Answers
Answer:
$2.20
Step-by-step explanation:
First you find how much money Meiling already has
2 dollars is $2.00
11 dimes is $1.10
5 pennies is $0.05
Add them all together
2 + 1.10 + 5 = 3.15
Then subtract how much Meiling need to how much Meiling has
5.35 - 3.15 = 2.20
Meiling still needs $2.20 for the ticket
need help with 5 6 7 and 8. at least answer one of them .
Answers
Answer:
5) moves one place to right
6) moves one place to left
Step-by-step explanation:
3x 2+ 4x - 20
using grouping or an area model.
Answers
Answer:
Is the 3x a power of 2, once I get that info I'll edit my answer
Step-by-step explanation:
The circumference of a circle is 20m. What is the area, in square meters?
Answers
Answer:
c = 62.83185
a = 314.15927 m²
Step-by-step explanation:
Hey There!
So first thing that we want to do is find the formula for the circumference
[tex]C=2\pi r[/tex]
where r = radius
we are given the diameter which we can easily convert to radius by dividing by 2
20/2=10
so the radius is 10
now we plug in
[tex]C=2\pi 10\\C=62.83185[/tex]
So the circumference is equal to 62.83185 m ²
Now to find the area we use the formula
[tex]A = \pi r^2[/tex][tex]10^2=100\\100\pi =314.15927[/tex]
so we can conclude that the area of the circle is 314.15927
please help!! whoever gets right i’ll mark brainlist
Answers
Answer:
It's B
Step-by-step explanation:
Because 10 less than 20 mean 20 is not greater so B. ) is correct
Work out the size of the angle marked t
Answers
Answer:
35°Step-by-step explanation:
This is an isoceles triangle
And as we all know an isoceles triangle has two equal base angles.
And we also know that the sum of all interior angles of the triangle is 180°
So based on this we can form an algebraic equation of solve for angke t (Let's do it :))
[tex]110 + 2t = 180 \\ 2t = 180 - 110 \\ 2t = 70 \\ t = \frac{70}{2} \\ t = 35[/tex]
So the base angle is 35°
the sum of all the angles is 180°.
t ° + t ° + 110 ° = 180 °
2t ° = 180 ° - 110 °
2t ° = 70 °
t = 70°/2
t = 35 °
Bob wants to buy a television that costs $600, including taxes. To pay for the television, he will use a payment plan that requires her to make a down payment of $240, and then pay $68.50 each month for 6 months. What is the percent increase from the original cost of the television to the cost of the television using the payment plan?
Answers
Answer:
108.5% increase
Explanation:
Find how much payments will cost for 6 months
68.50 × 6 = 411
Add payments to down payment
411 + 240 = 651
Compare:
600 vs 651
Solve for percent increase:
651 ÷ 600 = 1.085
Convert decimal into percentage:
1.085 × 100% = 108.5%
A 300 long wire is used to fence a rectangular plot whose length is twice its width find the length and breath
Answers
Answer:
Length = 100
Width = 50
Step-by-step explanation:
Given :
Length = 2 * width
If :
length = l
Width, w
l = 2w
Perimeter, P of rectangle :
P = 2(l + w)
P = 2(2w + w)
300 = 2(3w)
300 = 6w
w = 300/6
w = 50
l = 2w
l = 2(50)
l = 100
Simplify
5 x 5^2
leaving your answer in index form.
Answers
Answer:
5 x 5^2=125
Step-by-step explanation:
find the volume of the cylinder
Answers
Answer:
hope help you stay happy and safe
Use the converse of the side-splitter theorem to determine if T R is parallel to R S. Which statement is true? Line segment TU is parallel to line segment RS because StartFraction 32 Over 36 EndFraction = StartFraction 40 Over 45 EndFraction. Line segment TU is not parallel to line segment RS because StartFraction 32 Over 36 EndFraction not-equals StartFraction 40 Over 45 EndFraction. Line segment TU is parallel to line segment RS because StartFraction 32 Over 45 EndFraction = StartFraction 40 Over 36 EndFraction. Line segment TU is not parallel to line segment RS because StartFraction 32 Over 45 EndFraction not-equals StartFraction 40 Over 36 EndFraction.
Answers
Line segment TU is parallel to line segment RS because 32/36 = 40/45.
What is side splitter theorem?According to the "Side Splitter" Theorem, a line that crosses two sides of a triangle and runs parallel to its third side proportionally divides those two sides.
A line will divide two sides of a triangle proportionally if it runs parallel to one of the sides and intersects the other two.
Given
It is evident from the presented figure that QT=32, TR=36, QU=40, and US=45.
The opposite of the side splitter theorem asserts that a line is parallel to a third side if it divides two sides proportionally.
TU separates the two sides by a factor of in
QT/TR = 32/36 = 8/9
QU/US = 40/45 = 8/9
QT/TR = QU/US
It implies that the line TU divides the two sides equally.
Line segment TU is parallel to line segment RS using the reverse of the side splitter theorem because
32/36 = 40/45
Hence option 1 is correct.
Learn more about side splitter theorem;
https://brainly.com/question/30105519
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The complete Question is,