Answer:
b+6>-27
Step-by-step explanation:
b
b+6
Answer=b+6>-27
(Will l give 25 points!) Solve the system of linear equations by substitution. -8x + y = 5 and 5x - y = 3
Answer:
x = -8/3 and y = -49/3
Step-by-step explanation:
(Step 1) To solve using substitution, you first need to isolate a variable in one of these equations. I chose to isolate "y" in the following equation.
-8x + y = 5 <--- Original equation
y = 5 + 8x <--- Add 8x to both sides
(Step 2) Now, substitute (5 + 8x) for "y" in the second equation.
5x - y = 3 <--- Original equation
5x - (5 + 8x) = 3 <--- Substitute 5 + 8x for "y"
5x - 5 - 8x = 3 <--- Distribute (-) in the parentheses
-3x - 5 = 3 <--- Combine terms with "x"
-3x = 8 <--- Add 5 to both sides
x = -8/3 <--- Divide both sides by -3
(Step 3) Since you know the value of "x", plug it into one of the equations to solve for "y".
y = 5 + 8x <--- Original (rearranged) equation
y = 5 + 8(-8/3) <--- Plug (-8/3) for "x"
y = 5 - 64/3 <--- Multiply
y = 15/3 - 64/3 <--- Convert 5 into a fraction
y = -49/3 <--- Subtract
(Step 3.5) You can check your work by plugging "y" into the other equation to see if the answer for "x" is the same.
5x - y = 3 <--- Original equation
5(-8/3) - y = 3 <--- Plug (-8/3) for "x"
-40/3 - y = 3 <--- Multiply
-40/3 - y = 9/3 <--- Convert 3 into a fraction
-49/3 - y = 0 <--- Subtract both sides by 9/3
-49/3 = y <--- Add both sides by "y"
The value of the system of equations is x = -8/3 and y = -49/3.
A teacher would like to estimate the percentage of her students who play chess.
Which method should the teacher use to select the sample?
A. select all students who are currently in the chess club
B. use a computer to randomly select 30 student IDs from all her students
C. use a computer to randomly select 30 student IDs from all students
D. select every other student in her classes until she has selected a total of 30 students
Answer:
D
Step-by-step explanation:
because it's normal reasonal if it is wrong i will look for a better answer
Answer:
A. select all students who are currently in the chess club
Step-by-step explanation:
If the teacher randomly selects students, there is a greater chance that many don't play chess. But, if the teacher selects all the students who are currently in the chess club, most likely all of them play chess because they are in the chess club.
Six less than two times a number is no more than 17.
This is for math I failed a math unit test it was 100 points I’m not the best at every subject even though I get A’s normally from my own work. But I really need help with this I have this question I need to do so I can try to get my grade up just a little bit before tomorrow because they take my device away at school and I don’t have time to do it later.
Thank you!
Also I need the
Write an inequality for each phrase.
B: if x is 6, what is y?
Answer:
Step-by-step explanation:
4x + y = x + 3y
4x - x = 3y - y
3x = 2y
if x = 6 then
3*6 = 2y
18 = 2y
y = 9
The number of pieces of popcorn in a large movie theatre popcorn bucket is normally distributed, with a mean of 1610 and a standard deviation of 10. Approximately what percentage of buckets contain between 1600 and 1620 pieces of popcorn?
Approximately 68%
Approximately 75%
Approximately 95%
Approximately 99.7%
Answer:
A. Approximately 68%
Step-by-step explanation:
The number of pieces of popcorn in a bucket is normally distributed.
Mean = μ = 1610
Standard deviation = б = 10
We know that in a normal distribution, approximately 34% of bags will fall within one standard deviation on one side. On both sides within the range of 1 standard deviation, 34 + 34 = 68 % of bags will fall.
A table of normal distribution of the mean is attached for better understanding.
Our range is:
1600 to 1620
1610 - 10 to 1610 + 10
μ ± б
mean ± 1 standard deviation
Our range is within 1 standard deviation. Hence, Approximately 68% of buckets contain between 1600 and 1620 pieces of popcorn.
Can someone help me with math pls! You don't need to answer every question
Answer:
The figure created with the points (-2, -3), (-2, 5), (1, -3) and (1, 5) is a rectangle.
Which shape is a rectangle?
A rectangle is oblong. It has two pairs of parallel sides and four right angles. A rectangle can also be known as an equiangular quadrilateral. This is because a rectangle is a quadrilateral shape (4-sided shape) that hasparallel sides, equal to one another, and all 4 corners have angles that are90º.
Answer:
The figure created with the points (-2, -3), (-2, 5), (1, -3) and (1, 5) is a rectangle.
Which shape is a rectangle?
A rectangle is oblong. It has two pairs of parallel sides and four right angles. A rectangle can also be known as an equiangular quadrilateral. This is because a rectangle is a quadrilateral shape (4-sided shape) that hasparallel sides, equal to one another, and all 4 corners have angles that are90º.
Step-by-step explanation:
The diagram below shows a solid consisting
of a cone and a cylinder with a common
base. Find the
(a) volume of the solid,
(b) total surface area of the solid.
(Leave your answer in terms of TT
Answer:
A.) 15984.42cm^2/5088πcm^3
B.) 3466.56cm^2/1104πcm^2
Step-by-step explanation:
A.) fine the V of the cone and then cylinder then add them.
B.) The cone you have to find the LA (lateral area) to do that you would do is find S (slant) so you would do 12^2+16^2 which is 400 then u have to find the square root of it which is 20 which is that slant of the cone. After that you would do 12x20 which gives 240 that would be the LA of the cone.
Then you would find the LA of the cylinder which you have to do is 30x12 which is 360 then multiply it by 2 which gives 720.
Lastly you find the area of the base which in this case is a circle and that would be 144 add all of them then get the SA
PLS HELP WILL GIVE BRANLIEST: Draw the image of triangle ABC under a dilation whose center is P and scale factor is 1/3
Answer:
Draw the image of triangle ABC under a dilation whose center is P and scale factor is 1/3
Step-by-step explanation:
Model -5 + (-6) on the number line
please help it's 4 am and this is due at 9 am and if you use my points for no reason I'll report you 15 points each
Answer:
SA = 244.92² inches
Step-by-step explanation:
Basically just plug in the information given to you into the equation.
π (pi) = 3.14
r (radius) = 3 (radius is 1/2 of diameter, and the diameter is 6; half of 6 is 3 so that is the radius)
h (height) = 10
Therefore your equation set up should look like:
2(3.14)(3²) + 2(3.14)(3)(10) = 244.92
The answer is 8, I’ve seen this exact same question on Brainly before
Match each set of equations with the move that turned the first equation into the second.
How can I solve this?
Given that ∠STV = 108° and ∠RST = 50°, determine the missing angles:
a. Find ∠RTU
b. Find ∠STR
c. Find ∠SRT + ∠TUV
Please help, I would appreciate it. I will reward anyone who gives the correct answer with 50 points!
Type a digit that makes this statement true.
5,091,71
is divisible by 8.
Submit
WHAT IS THE TRUE STATMENTS
Answer:
number 3
Step-by-step explanation:
help me find the answer and please TO SHOW ALL WORK
tysm!!!
Step-by-step explanation:
Let x, and x+1 be the consecutive numbers.
[tex]x + (x + 1) = 37[/tex]
[tex]2x + 1 = 37[/tex]
[tex]2x = 36[/tex]
[tex]x = 18[/tex]
Plug in 18 for x+1,
[tex]18 + 1 = 19[/tex]
So the numbers is 18,19
Answer:
18 and 19
Step-by-step explanation:
if you have two consecutive numbers, then using algebra, one unknown number is x and the other unknown consecutive number is x + 1
The equation x + x + 1 = 37
To solve this equation subtract 1 from both sides as one does in algebra.
x + x + 1 = 37 → x + x + 1 - 1 = 37 - 1
Now you have the equation x + x = 36
This can rewrite this as 2x = 36 2x means 2 times the value of x
To solve this part of the equation divide both sides by 2
2x / 2 = 36 / 2
x = 18
The next consecutive number x + 1 = 19, (18) + 1 = 19
check this by adding. 18 + 19 = 37.
ASAP I NEED AN ANSWER
Answer:
His brother gets 8 apples
His friends gets 4 apples
He gets 12 apples
Step-by-step explanation:
brother: friend himself::total
2 1 3 2+1+3 = 6
He has a total of 24 apples
24/6 = 4
Multiply each term by 4
brother: friend himself::total
2*4 1*4 3*4 6*4
8 4 12 24
His brother gets 8 apples
His friends gets 4 apples
He gets 12 apples
The scatter plot below represents the weight of a box of cookies based on the number of cookies in the box. A best-fit line shows the relationship.
Answer:
a. true
b. false
c. false
d. false
e. true
Step-by-step explanation:
a is true because the graph is measuring the weight of the box based on the number of cookies in it, and the box has weight even without cookies in it.
b is false because the slope of the line is 1/2, and each cookie weighs 1/4 oz.
c is false because there is an association between the number of cookies and the weight of the box.
d is false because that is the weight of one cookie, and doesn't take into account the weight of the box by itself.
e is true because the graph shows that at 13 cookies, the box weighs around 3.75 ounces.
Write 60/100 as a decimal
Answer:
0.6 OR 0.60
Step-by-step explanation
A trick to use is that always put the zero first. For example 50/100 would equal 0.50 because of those 3 digits.
Answer:
0.6
Step-by-step explanation:
A woman wants to measure the height of a nearby building. She places a 2m pole in the shadow of the building so that the shadow of the pole is exactly covered by the shadow of the building.The total length of the building's shadow is 58m, and the pole casts a shadow that is 2.75m long. How tall is the building? Round your answer to the nearest meter. (The figure is not drawn to scale.)
Answer:
61meters
Step-by-step explanation:
rounded off from 60.75m
The table shows the change in temperature each hour for four hours. Find the total change C in temperature.
Change in Temperature
7 A.M. - 8 A.M. −3°F
8 A.M. - 9 A.M. −1°F
9 A.M. - 10 A.M. +2°F
10 A.M. - 11 A.M. +8°F
Answer:
6
Step-by-step explanation:
-3 -1 +2 +8 = -4+10 = 6
Question
You made a cone-shaped paper funnel to get all of the glitter back in the original container. It has a slant height of 12 inches and a radius of 8 inches. About how many square inches of paper is used to make the cone?
Answer:
The answer is 301 square inches.
Step-by-step explanation:
Please help me and please don’t answer if you don’t know pleaseee!!!!
Answer:
c
Step-by-step explanation:
a rectangular prisim measures 6m long and 3m wide. if the volume of the prisim is 162 m3 what is the hight of the prisim in meters? show your work
Answer:
the hieght is 9
Step-by-step explanation:
divide 162 by 6 and you should get 27 then divide 27 by 3
to check your answer multiply 9x6x3 and you are done!!!
What is the least common denominator of 2/6 and 7/8
Answer:
Therefore the least common denominator is 24.
Step-by-step explanation:
2/6 = 8/24
7/8 = 21/24
No more explanation.
Answer:
24
Step-by-step explanation:
Both denominators 6 & 8 have a LCM of 24
Therefore the least common denominator is...
Mr. Albertson bought 6 sandwiches for his family for $27. How much did he pay per sandwich?
can someone help me please
Tut
Pablo is keeping an equal number of square and rectangular boxes in a local storage facility.
He stores square boxes in stacks of 3 and rectangular boxes in stacks of 5. What is the
smallest number of each type of box that Pablo could have?
boxes
Submit
Answer:
0
Step-by-step explanation:
Sorry this was rushed it may be wrong but I think it is 0! Hope this helped you.
Which is the answer A- D ?
Answer:
B.Step-by-step explanation:
Inequality:
-3b - 15 > -24The dot must start at -3 (-3b).
Which would be B.
Then, we solve this inequality:
-3b - 15.Solve:
-3b - 15= 18b18b > -24.Hence, the answer is B.If the ordered pair are equivilant ratios, what ordered pair is missing?
Answer:
2:6
Step-by-step explanation:
Answer:
21:9 and 14:6
they are equivalent because they are just the ratio multiplied by two or three, and they both reduce down to the original ratio of 7:3
Step-by-step explanation:
i'm almost positive its right