The probability that the teacher chooses two girls is 3 / 5.
What is probability?Probability is defined as the ratio of the number of favorable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
Probability = Number of favorable outcomes / Number of sample
Given that a teacher chooses two students in a class of 15 girls and 10 boys. The probability is calculated as:-
P = 15 / 25
P = 3 / 5
Hence, the probability is 3 / 5.
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The set of ordered pairs shown below is a relation that is a function of x.
{(1,3), (2,4), (3,5), (4,6)
Which ordered pair could be included in the set so that the relation remains a function of x?
A. 0,4. B 2,4 C 3,3 D 4,7
Answer:b
Step-by-step explanation:
Sara spent half of her allowance going to the movies. She washed the family car earned 6 dollars. What is her weekly allowance if she ended with 15 dollars?
The answer for this question would be 7
Answer:
18 dollars
Step-by-step explanation:
15-6=9
9x2 (double it because she spent half)18
Select all the equations where b=11b=11b, equals, 11 is a solution. Choose 2 answers: Choose 2 answers: (Choice A) A 2b=2112b=2112, b, equals, 211 (Choice B) B b+18=7b+18=7b, plus, 18, equals, 7 (Choice C) C 77=7b77=7b77, equals, 7, b (Choice D) D 9=b-29=b−29, equals, b, minus, 2 (Choice E) E 11=33\div{b}11=33÷b
Answer:
Step-by-step explanation:
We are to choose all the equation that evaluates b to be 11. The following equations are true;
77 = 7b
To get b, we will divide both sides by 7
77/7 = 7b/7
11 = b
b = 11
This shows that the equation is correct since b = 11
Also 9 = b-2
To get b, we will add 2 to both sides of the expression
9+2 = b-2+2
11 = b
b = 11
This shows that the equation is correct since b = 11
Hence option C and D are correct
Answer:
C and D
Step-by-step explanation:
You do the opposite of the question to get answer.
please help i will put as brainliest need done today asap
Answer:
c
Step-by-step explanation:
Answer:
B.) 2 2/5
Step-by-step explanation:
If you find the answer to the question, you get the same answer as B.
please explain this someone
Answer:
A. x=5
B. Look at image for answer
Step-by-step explanation:
No she is not correct.
Since both angles have the same measurement you set them equal to each other as so & solve for x
2x+90= x+95
x+90=95
x=5
In order to find the angle measurements you plug in 5
2(5)+90
10+90
= 100 degrees
Supplementary angles add up to 180 degrees so the angle next to the 100 degree one is 80 degrees
Does anyone know how to solve 3 by 3 linear systems?
In the system below, use equation (1) with equation (2) to eliminate x. Then use equation (1) with equation (3) to eliminate x.
x-y-2z=4 (1)
-x+3y-z=8 (2)
-2x-y-4z=-1 (3)
Answer:
x = 3, y = 3, z = - 2
Step-by-step explanation:
Given the 3 equations
x - y - 2z = 4 → (1)
- x + 3y - z = 8 → (2)
- 2x - y - 4z = - 1 → (3)
Add (1) and (2) term by term to eliminate x
2y - 3z = 12 → (4)
Multiply (1) by 2 and add to (3) to eliminate x
2x - 2y - 4z = 8 → (5)
Add (3) and (5) term by term to eliminate x
- 3y - 8z = 7 → (6)
Multiply (4) by 3 and (6) by 2
6y - 9z = 36 → (7)
- 6y - 16z = 14 → (8)
Add (7) and (8) term by term to eliminate y
- 25z = 50 ( divide both sides by - 25 )
z = - 2
Substitute z = - 2 into (7)
6y + 18 = 36 ( subtract 18 from both sides )
6y = 18 ( divide both sides by 6 )
y = 3
Substitute y = 3 and z = - 2 into (1)
x - 3 + 4 = 4
x + 1 = 4 ( subtract 1 from both sides )
x = 3
Solution is x = 3, y = 3, z = - 2
Cayenne bought 20 pencils for 1.60 dollars at that rate how much would 35 pencils cost
A car travels a distance of 1280 metres at an average speed of 64 kilometres per hour.
Ра:
Calculate the time it takes for the car travel this distance,
Give your answer in seconds
Answer:
The answer is 20 hours
Step-by-step explanation:
This is becuase 1280 divided by 64 equals 20. There are no unit coversions.
In time t = 0.02 hour the car travels a distance of 1280 meters with a speed of 64 kilometers per hour.
Given that,
A car travels a distance of 1280 meters at an average speed of 64 kilometers per hour.
Speed is defined as when an object is in motion, the distance covered by that object per unit of time is called speed.
Here,
Time = distance/speed
Time. t = 1.280 / 64
t = 0.02 hours
Thus, In time t = 0.02 hour the car travels a distance of 1280 meters with a speed of 64 kilometers per hour.
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it’s me again lol pls help
Answer:
C
Step-by-step explanation:
This might look strange, but I would begin by adding 4y to both sides.
12x = 20 + 4y Subtract 20
12x - 20 = 4y Divide both sides by 4
12x/4 - 20/4 = 4y/4 Combine
3x - 5 = y
5 less than triple the quotient of a number x and 7
Answer:
5 less than triple the quotient of a number x and 7 is 3(x ÷ 7) - 5
I need help. So to get -20 you are supposed to multiple the two numbers we don’t know and to get 19 you are supposed to add up using the same numbers.
Answer:
x=20
x=-1
Step-by-step explanation:
I only understand factoring i just wrote it in a different way haha.
Hops this makes sense and helps! :)
Whatever3443 pls help me someone is murdering me ✌
Answer:
i-
Step-by-step explanation:
Answer:
Oh no! I'm sorry!
Step-by-step explanation:
WHOEVER ANSWER THIS I WILL GIVE BRAINIEST TO WHAT IS 1234567890+0987654321
Answer:
2222222211
Step-by-step explanation:
Answer:
2222222211
Step-by-step explanation:
calculator
A line has a slope of 3 and goes through the point (6,-5). What is the equation of this line in Standard Form?
- 3x +y= 21
-3x +y= -23
- 3x +y = -13
3x +y = 13
Answer:
−3x+y=−23
Step-by-step explanation:
wow this is exactly 1 year ago from today
-3x +y= -23 is the equation of this line in Standard Form .
What is in slope-intercept form?
Y = mx + b, which defines a line, is an equation's slope-intercept form. When a line is graphed, its slope, m, and its point of intersection with the y-axis, b, also known as the y-intercept, are shown. To find answers for x, y, m, and b, utilize slope intercept form.m = 3
the point = (6,-5)
the equation of this line
y - y₁ = m ( x - x₁)
y - ( -5 ) = 3 ( x - 6 )
y + 5 = 3( x - 6 )
y + 5 = 3x - 18
y = 3x - 18 - 5
y = 3x - 23
-3x +y= -23
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who ever answers all these questions will get the brianlist and it has to be right please :)
0-Yellow
0.25-Green
-2-Blue
/-Green
π-Purple
I wish that answers your question
Thank You
true or false for k = 4 in 32÷k=8
Answer:
True
Step-by-step explanation:
Answer:
TRUE!
Step-by-step explanation:
14.89 divided by 0.02
Answer:
744.5
Step-by-step explanation:
Answer:
744.5
Step-by-step explanation:
the answer is 744.5
Pls does anyone know the answer I need it fast
Answer:
The first one is 120 and the second is 200
Step-by-step explanation:
The range value is the domain value times 40
Will get brainless
Please help
Answer:
1. 104
2. 70
3. 106
4. 56
5. 47
6.87
Step-by-step explanation:
Answer:
1: 104 perimeter, 532 area
2: 70 perimeter, 190 area
3: 106 perimeter, 493 area
4: 56 perimeter, 171 area
5: 48 perimeter, 93 area
6: 90 perimeter, 389 area
Step-by-step explanation:
Hope that helps
The greater of two consecutive even integers is at most fifty less than five times the smaller. Which of these represents the inequality needed to solve for the smaller integer, x, as well as its solution?
Answer:
Inequality: 2x + 2 ≤ 5•2x - 50
Solution: x ∈ <6.5, ∞)
Step-by-step explanation:
2x - the smaller of consecutive even integers
2x+2 - the greater of consecutive even integers
5•2x - five times the smaller number
5•2x-50 - fifty less than five times the smaller number
"is at most" means is less or equal
2x + 2 ≤ 5•2x - 50
2x + 2 ≤ 10x - 50
-2 -2
2x ≤ 10x - 52
-10x -10x
-8x ≤ -52
÷(-8) ÷(-8)
x ≥ 6.5
x ∈ <6.5, ∞)
PLEASEEEEEEEEEEE HELP ME!!! WHAT IS 800,000 IN scientific notataion
Eight multiply by 10 power 5
Step-by-step explanation:
Because it's in thousands so we right 10 and then number of zero is power
For example
400000
4 ✖ 10 power of 5
Figure ABCDE was reflected across the line y = x to create figure A'B'C'D'E'. What are the coordinates of the pre-image of E'?
Answer:
-2, 6
Step-by-step explanation:
if Figure ABCDE was reflected across the line y = x to create figure A'B'C'D'E' then (6, -2) are the coordinates of the pre-image of E'.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
Graph transformation is the process by which an existing graph, or graphed equation, is modified to produce a variation of the proceeding graph.
It's a common type of problem in algebra, specifically the modification of algebraic equations.
ABCDE was reflected across the line y = x to create figure A'B'C'D'E'.
The coordinates of the pre-image of E' are (6, -2)
Hence, coordinates of the pre-image of E' are (6, -2)
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Complete the following equality. 11 ft = in.
Answer:
11 ft =132in
Step-by-step explanation:
first u multiply the length value which is 12
11 x 12 = 132
Write an algebraic expression for "five minus the sum of a number and 8." Use n as the variable.
Answer:
5-(n+8)
Step-by-step explanation:
Someone please help me
the answer would be 4x10^4
happy to help
plz mark brainliest
⚠PLEASE! THIS IS DUE TONIGHT! FREE BRAINLIEST!⚠
UX bisects ∠VUW. Complete the proof that △UWX≅△UVX.
the asnwer is either SAS or SSS
Answer:
SAS theorem
Step-by-step explanation:
Answer: SAS theorem :-D BREH
Step-by-step explanation:
Find the equation of each line in slope intercept form , the slope is 5 and it goes through the point (2-1)
y - -5 = (5/2)(x - 3)
y + 5 = (5/2)x - 15/2
y = (5/2)x - 15/2 - 5
y = (5/2)x - 15/2 - 10/2
y = (5/2)x - 25/2
Answer:
y = 5x - 9
Step-by-step explanation:
point-slope equation:
y - y1 = m(x - x1)
y + 1 = 5(x - 2)
y + 1 = 5x - 10
- 1 - 1
y = 5x - 9
Twenty- eight percent of the 150 students in the senior class are either on a team or in a club. How many seniors are either on a team or in a club?
Answer:
it should be 15 students
Step-by-step explanation:
Which of the following has 14.705 in written form?
OA) fourteen and seven hundred five thousands
O B) fourteen and seven hundred five hundredths
O C) fourteen and seven hundred five thousandths
OD) none of the above
Answer:
b
Step-by-step explanation:
Answer:
answer choice b
Step-by-step explanation:
hope it helps!!
Sylvia buys a case of water that contains 24 bottles and sells x number of bottles to her co-workers. Sam buys a case of water than contains 36 bottles and sells three times as many bottles as Sylvia sold to his co-workers. How many bottles of water did Sylvia sell if they ended up with the same number of bottles of water left over?
Record your answer in the grid below.
Be sure to use the correct place value.
8 points total Show work in order to receive full credit.
7 points correct answer
1 point correct bubbling on grid
Answer:
6
Step-by-step explanation:
Number of water bottles bought by Sylvia = 24
Number of water bottles sold by Sylvia = [tex]x[/tex]
Number of water bottles left with Sylvia = [tex]24-x[/tex]
Number of water bottles bought by Sam = 36
Number of water bottles sold by Sam = Three times as many as bottles as Sylvia sold = [tex]3x[/tex]
Number of water bottles left with Sam = [tex]36-3x[/tex]
It is given that the number of water bottles left with Sylvia and Sam are equal.
i.e.
[tex]24-x=36-3x\\\Rightarrow 2x=12\\\Rightarrow x =\bold{6}[/tex]
So, number of water bottles sold by Sylvia = 6
