Step-by-step explanation:
To obtain score of 80% on entire exam means the student have to answer
(80/100)×80 = 64 correct answers
Student have already answered 75% of the first 60 questions correctly meaning
(75/100)×60=45 correct answers from first 60 questions
Remaining correct answers s/he have to answer
64-45=19
So from remaining 20 questions s/he have to answer 19 correct questions that is
20 × (x/100) = 19
x = 19 ×(100/20)
x = 95%
Find the area of the figure.
Answer:25
Step-by-step explanation:Count all the wholes then put all the halves and there is 25
2 A rectangular computer screen has an area of A square inches. The width of the
computer screen is 7 inches. Which equation represents x, the length of the computer
screen in inches?
F
G
H
J
F x =
G x = A + 27
H x = A - 2(7)
J x =
Answer:
I think its F
Step-by-step explanation:
Don't guess!
I will mark brainliest if its correct!
Don't answer if you don't know!
Also no links!
And show your work plz!
Write an expression equivalent to z + z + z + z + z that is the sum of two terms
Answer:
z+z
Step-by-step explanation:
Simplify (Write without absolute value sign)
ex) ║120 +x║, if x < -120
answer would be: -120 -x
My problems:
1. ║x-120║, if x<-120
2. ║x-(-12)║, if x > -12
3. ║x-(-12)║, if x < -12
4. ║x-(-12)║, if x = -12
5. ║x ÷ 3║, if x > 0
6. ║x ÷ 3║, if x < 0
7. ║x ÷ 3║, if x = 0
**WILL GIVE BRAINLIEST IF 4 OR MORE ARE CORRECT**
Answer:
-(x-120)
x-(-12)
-(x-(-12))
0
x / 3
-(x/3)
0
Step-by-step explanation:
1. || x-120||, if x<-120.
If x is less than -120, then x - 120 will be a negative number.
Since absolute value will make a negative number positive, the answer will be -(x-120).
2. ||x-(-12)||, if x > -12.
Basically x -(-12) = x + 12. If x is greater than -12, then ||x+12|| will be positive. The answer is x-(-12).
3. ||x-(-12)||, if x < -12.
Again, x-(-12) = x + 12. If x is less than -12, ||x+12|| will be negative.
Absolute value makes a negative number positive. The answer is -(x-(-12)).
4. ||x-(-12)||, if x = -12.
So we can substitute x with -12. ||-12-(-12)|| = ||-12+12||, which equals ||0||, which is also just 0. (Answer is 0.)
5. ||x / 3||, if x > 0.
Any positive number divided by another positive number will be positive, meaning you can just take out the absolute value sign. Answer is x /3.
6. ||x / 3||, if x < 0.
Any number less than 0 is negative, and any negative number divided by a positive number will be negative. If we take out the absolute value, we'll have to reverse it with a -. Answer: -(x/3).
7. ||x / 3||, if x = 0.
||0/3|| = ||0||, which is still 0.
Hope this helps!
6 questions pls !!!!!!
What is the Answer pls help I am trying my best. 50 points !!!!!!!
Answer:
1. 11/2
2. 4 and 1/6
3. 5 and 1/12
4. 41/8
5. 113/24
6. 32/3
Step-by-step explanation:
20 points
How do you convert mass to volume without density?
Answer:
Well, you could always just put it onto a scale to find the mass. But assuming you aren't talking about a laboratory setting. sorry if its all werid i cant really put it into how it supposed to be
The general formula is:
ρ
=
m
V
where
ρ
is density in
g/mL
if mass
m
is in
g
and volume
V
is in
mL
.
So to get the mass...
m
=
ρ
V
Or to get the volume...
V
=
m
ρ
When you have the volume and not the density, and you want to find mass, you will need to find the density yourself. It's often readily available on the internet.
Just replace "[...]" with the object you want, and if it's not exactly what you need, consider it an estimate.
These days, you should be able to search for the density of any common object.
When you have the density and volume but not the mass, then just make up a mass.
You shouldn't need specific numbers to do a problem. You can always solve a problem in general and get a solution formula. If you need to, just make up some numbers that you know how to use.
Which is the graph of x≥−5?
Answer:
Here!
Step-by-step explanation:
A. Create an algebraic expression.
B. Create a word problem which represents the algebraic expression you created.
Answer:
a+b=ab
Step-by-step explanation:
a plus b is equal to ab.
Answer:
Step-by-step explanation:
5x = 30
If there are 5 students in a row, find the number of rows given that the number of total students is 30.
Here 'x' represents the number of row
In a community survey, 13/20 of the residents claim to recycle. If there are 720 residents, how many residents claim to recycle?
Answer:
468
Step-by-step explanation:
make a proportion:
13/20 = x/720
20x?=720
20x36=720
whatever you do to the bottom you do to the top
13x36=468
468/720 residents claim to recycle
Find the missing angle on a quadrilateral. Angle C equals 80 degrees, Angle D equals 90 degrees, and angle E equals 135 degrees. What is the measure of Angle F?
Look at the picture that I posted,
Answer:
$226.57 left
Step-by-step explanation:
$48.73
$10.13
+$32.46
=$91.32
$317.89-$91.32
=$226.57
please mark as brainliest
Carina is borrowing $27,000 to buy a new car. If she borrows the money at 4.15% interest compounded annually for 5 years, how much interest will she pay on her car loan?
$33,087.21
$6,087.21
$1,120.50
$5,602.50
Answer:
NO, the these three border pieces will not make a right triangle
Step-by-step explanation:
Use the compound amount formula A = P(1 + r)^t:
Here A = ($27,000)(1 + 0.0415)^5
A = ($27,000)(1.0415)^5 = $33,087.21
Subtracting the principal amount, $27,000, leaves the compound interest amount: $33,087.21 - $27,000 = $6087.21
She will pay $6,087.21 interest on this loan.
GIVING BRAINLIEST BUT ANSWER IT CORRECTLY, NO LINKS
Look at the stem-and-leaf plot. What is the range in scores?
A. 35
B. 31
C. 18
D. 8
Answer: B
Step-by-step explanation: The range for a value of data is the smallest value subtracted from the largest value, in this case, 35-4=31!
the graph shows a proportional relationship which equation matches the graph
biased means: when a sample does not accurately represent the population.
random sample means: a sample that is NOT BIASED.
A cylindrical shaped swimming pool has a diameter of 30 feet and a water height of 4.5 feet. How many cubic feet of water is contained in the pool? Use 3.14 for pi. Round your answer to the nearest cubic foot.
Answer: A
Step-by-step explanation:
The question asks about how much space the cylinder can hold. That's how i know they are really asking for the volume of the cylinder.
Next, the volume of a cylinder is V= πr²h
R is the radius
h is the height
π= 3.14 (in this question).
We know that the diameter is 30, and that the radius is always 1/2 of the diameter. To find the radius, find 1/2 of 30. Whenever you see something of something, just turn the "of" into the multiplication sign. So just do 1/2 x 30= 15.
R= 15
H= 4.5
Pi= 3.14
Now we can plug into the formula:
Using pemdas, do exponents first. Then multiply from left to right.
V= πr²h
V= 3.14x15²x4.5
V= 3.14x225x4.5
V= 706.5x4.5
V= 3,179.25
3,179.25 rounds rounds to just 3,179 because first you round the .25 to point 3, and because 3 is under 5, it rounds down. The answer is A
Hope this helps :)) Also brainliest would be appreciated, I worked pretty hard on this :D
what is the median
6
5
5.5
4
Answer:
5.25
So with 4 numbers you add the two middle and then divide by 2
So 5+5.5
10.5 ÷2
5.25
yeah i ask a lot of questions my bad
Answer:
B
Step-by-step explanation:
4 + 3 =7
^
n
I need help with this
Answer:
#1-
The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends. The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right. The columns, called groups, contain elements with similar chemical behaviours. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are the halogens; and group 18 are the noble gases. Also displayed are four simple rectangular areas or blocks associated with the filling of different atomic orbitals. #2-118
Step-by-step explanation:
PLS HELP ILL GIVE BRAINLIEST.
Answer:
Step-by-step explanation:
I think it increased by 20% I think or it’s 25% think
Do you agree with Jada or Lin? Explain. (Look at the attached picture)
Answer:
lyhn
Step-by-step explanation:
because she has more %s
please help me with this and prove how you got your answer
Luisa works at a gift shop. She receives a bonus if she sells at least 20 balloon bouquets in a month. Which graph represents the number of bouquets she needs to sell to get a bonus? *
A
B
C
D
Answer:
d
Step-by-step explanation:
im think right
Answer:
D
Step-by-step explanation:
"at least 20" means "20 or more".
That means you need a closed circle at 20 to include 20 and shading to the right of 20 to include greater than 20.
Answer: D
Demarcus has a cereal box shaped like a rectangular prism. It measures 758 inches long, 212 inches wide, and 12 inches high. What is the volume of the cereal box?
Answer:
1,928,352 in cubed
Step-by-step explanation:
The volume of the cereal box is [tex]\rm 228\dfrac{3}{4}[/tex]cubic inches.
What is the volume of rectangular prism?The volume of rectangular prism is given by :-
[tex]\rm Volume = Length \times Width \times Height[/tex]
Demarcus has a cereal box shaped like a rectangular prism. It measures 7 5/8 inches long, 2 1/2 inches wide, and 12 inches high.
The volume of the cereal box is determined in the following steps given below.
[tex]\rm Volume = Length \times Width \times Height\\\\\rm Volume = 7\dfrac{5}{8}\times 2\dfrac{1}{2} \times 12\\\\\rm Volume = \dfrac{7\times 8+5}{8} \times \dfrac{2\times 2+1}{2} \times 12\\\\\rm Volume = \dfrac{61}{8} \times \dfrac{5}{2} \times 12\\\\Volume =\dfrac{3660}{16}\\\\Volume=228\dfrac{3}{4}[/tex]
Hence, the volume of the cereal box is [tex]\rm 228\dfrac{3}{4}[/tex]cubic inches.
Learn more about prism here;
https://brainly.com/question/3244285
#SPJ2
Chloe is driving on the freeway. She is 200 miles from Los Angeles. She drives at a constant speed of 55 miles per hour. Can Chloe get to Los Angeles in less than 3 1..2 hours?
Calculate circumference of the circle. (use = 3.14)
Answer:
The circumference of the circle is 2πr
Step-by-step explanation:
Will give brainliest so no links^^
If a man is driving at a rate of 80 km per hour, how many kilometers will he travel in 30 minutes?
A) 30 km
B) 40 km
C) 60 km
D) 240 km
Answer:
C
Step-by-step explanation:
Help my dum b brain cant handle this right now
Answer:
It would be -100 < -75
Step-by-step explanation:
Don't guess!
I will mark brainliest if its correct!
Don't answer if you don't know!
Also no links!
And show your work plz!