Answer:
31
Step-by-step explanation:
2 out of 35 are chess club members.
The fraction of chess club members in the survey is 2/35.
Now we find 2/35 of 550.
2/35 * 550 = 1100/35 = 31.43
Answer: 31
If there are 550 students at her school, then there are 31 chess club members in the entire school.
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
If Carmen surveyed a random sample of 35 students and found that 2 are chess club members.
We can set up a proportion to solve for this:
2/35 = x/550
where x is the number of chess club members in the entire school.
To solve for x, we can cross-multiply and simplify:
2 × 550 = 35 × x
1100 = 35x
Divide both sides by 35.
x = 1100/35
x ≈ 31.43
Therefore, we can estimate that there are approximately 31 chess club members in the entire school.
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A rectangle has side lengths of (3x+6) inches and (2x-4) inches. Write an expression to represent the perimeter of the rectangle. Then find the value of x if the perimeter is 94 inches.
What is the Mean Absolute Deviation of the following data set?
{23, 25, 28, 29, 30}
Answer:
The mean absolute deviation is 2.4
Step-by-step explanation:
The slope of the line below is 3. Write the equation of the line in point-slope
form, using the coordinates of the labeled point. Do not use parenthesis on
the y-side.
(-1,1)
-5
5
-5
Answer:
The equation of the line in point-slope form is [tex]y - 1 = m(x + 1)[/tex]
Step-by-step explanation:
Equation of a line:
The equation of a line, in point-slope form, is given by:
[tex]y - y_0 = m(x - x_0)[/tex]
In which the point is given by [tex](x_0,y_0)[/tex] and m is the slope.
The slope of the line below is 3.
This means that [tex]m = 3[/tex]
(-1,1)
This means that [tex]x_0 = -1, y_0 = 1[/tex].
Equation of the line:
[tex]y - y_0 = m(x - x_0)[/tex]
[tex]y - 1 = m(x - (-1))[/tex]
[tex]y - 1 = m(x + 1)[/tex]
The equation of the line in point-slope form is [tex]y - 1 = m(x + 1)[/tex]
Jillian tracks her progress on her spelling tests over a period of four weeks. Which list shows her scores from greatest to least
Weeks 1,3,2,4
Weeks 3,1,4,2
Weeks 3,1,2,4
Weeks 1,3,4,2
Answer: B
Step-by-step explanation:
The pair of equations that can be used to find x and y are:
x + y = 62
(1.02)x = 7
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign. In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
Here, we have,
The form of the pair of equations would be:
hours worked last week + hours worked this week = total hours worked both weeks equation 1
(1 + percent increase/100) x hours worked last week = hours worked this week equation 2
x + y = 62 equation 1
(1 + 20/100) ×x = y
(1.02)x = 7 equation 2
The two equations can be solved using either of these three methods:
elimination method
substitution method
graph method
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complete question:
Jillian worked 62 hours this week and last week. She worked x hours last week and y hours this week. She worked 20% more hours this week than last week. What pair of equations can be used to find x and y?
Ethan needs to buy 20 T-shirts for the basketball team. If there are 10 T-shirts in each pack, how many packs of T-shirts should Ethan buy?
Answer:
2 packs
Step-by-step explanation:
because 10+10 =20 so he would buy 2 packs of t-shirts :)
Which players' hit totals would you use to find the range?
Answer:
17. a 18. c 19. d 20. b
Step-by-step explanation:
Hello, for the first question, you just take the person with the largest number and the person with the smallest number. Kenny (5) and Sammy (0).
For question 18, you just add up all the numbers like this:
0+1+3+5+4+1+1+2+1= 18
And then you divide it by the number of people there which is 9:
18/9=2
For question 19, you arrange all the numbers from least to greatest like this:
0,1,1,1,1,2,3,4,5
And then you count on both ends until it meets the middle. 1 is the middle.
For the last question, you just find the number that appears the most, which is one.
Rectangle is graphed in the coordinate plane. The following are the vertices of the rectang A(- 2, 2), B(6, 2), C(6, 3) and D(- 2, 3) . What is the area of rectangle ABCD?
Answer:
Adenosine triphosphate
Answer:
The area of the rectangle ABCD will be 8 sq. units.
Step-by-step explanation:
The rectangle shape ABCD has vertices A(- 2,2), B(6,2), C(6,3) and D(- 2,3).
Presently, length of side AB = [6 - (- 2)] = 8 units.
{Since the line AB is corresponding to the x-pivot, so the length of the portion AB will be the contrast between the x-directions of the focuses An and B}
Once more, line BC is corresponding to y-pivot and thus the length BC = (3 - 2) = 1 units.
Subsequently, the space of the square shape ABCD will be (8 × 1) = 8 sq. units. (Answer)
An event that is guaranteed to happen has a probability of exactly
Answer:
100%
Step-by-step explanation:
It is confirmed to happen, or [tex]\frac{100}{100}[/tex]
Answer:
An event that is guaranteed to happen has a probability of exactly 1
HELP PLS HURRY! The graph shows the proportional
relationship between the total cost and the
number of pounds of cashews purchased.
What would the total price in dollars be for
11.5 pounds of cashews?
Answer:
57.5$
Step-by-step explanation:
5$ a pound, 11.5 pounds, multiply them and you get 57.5$
Answer:
45
Step-by-step explanation:
Function is defined by f(x) = x2 - 4x + 8. The graph of function g is shown.
Let h represent the x-coordinate of the vertex of the graph of y = f(x). Let
represent the x-coordinate of the vertex of the graph of y = g(x). What is the
value of h-j?
The value of h -j is -5.
We have the function, f(x) = x² -4x + 8
Now, vertex
h = x = -b/2a
h = x = -(-4) / (-2)
h = x = -4/2
h= x = -2
Now, according to the graph
j = x= 3
So, h - j
= -2 - 3
= -5
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For the equation, complete the given ordered pairs.
3x-y=4
{0,_} [1,_} {_,4}
Can someone help me
Answer:
{0,-4} [1,-1} {8/3,4}
Step-by-step explanation:
3x - y = 4
{0,_} [1,_} {_,4}
For x = 0:
3x - y = 4
0 - y = 4
y = -4
For x = 1
3x - y = 4
3 - 3 - y = 4 - 3
-y = 1
y = -1
For y=4
3x - y = 4
3x -4 = 4
3x = 8
x = 8/3
Solution:
{0,-4} [1,-1} {8/3,4}
Please mark brainliest if this helped!
Please mark brainliest if this helped!
having trouble on this ixl
Answer:
1/2
Step-by-step explanation:
Since they sold 3 cupcakes of each section, it would be a 50/50 chance that the next one would be either.
Sara has 3 choices to get to school: walk, ride a bike, or ride the bus.
She has the same choices to get home after school. If Sara randomly
chooses how she is getting to school and home, what is the probability
that she will walk to school and then ride the bus home?
Answer:
I think the answer is 1/9
Step-by-step explanation:
I did the equations by using a tree diagram to explain it but
2. What is the value of x? (y + 2.3) cm K G 7 cm (2.5x) H A. O 60 B. O 72 C.O 30 D.O 24
Answer:
ITS B SORRY CAPS
Step-by-step explanation:
Jose graphed the amount of money paid in relation to the Number of avocados bought. Which statement best describes the unit rate for the graph below?
Answer:
The answer is c : avacodos cost 5.00 each
Step-by-step explanation:
In how many ways can 21 be expressed as the sum of 3 prime numbers?
Answer:
I think by using a prime factor tree
b) Is the relation a function? Use the vertical line test to decide.
Answer:
Step-by-step explanation:
The answer is A U just did that on Khan academy
Answer: A
Step-by-step explanation:
Find the volume of the composite solid. Round your answer to the nearest tenth.
Answer:
Volume = 646.0 cm³
Step-by-step explanation:
The solid is made up of a hemisphere and a cube
Therefore,
Volume of the composite solid = ⅔πr³ + a³
Where,
r = ½(8) = 4 cm
a = 8 cm
Plug in the values
Volume of the composite solid = ⅔*π*4³ + 8³
= 134.04 + 512
= 646.0 cm³ (nearest tenth)
PLSSSS HELP AND NOOOO LINKS OR SPAMMERS!!!! Write the equation of the line for the graph shown below.
Hoshi has $50. Emily has $23 more than Hoshi. Karl has $16 less than Emily. How much money do they have all together?
Answer:
88
Step-by-step explanation:
50 - 23 = 27
27 - 16 = 11
50 + 11 + 27 = 88
PLEASE PLEASE PLEASE! WILL MARK BRAINLIEST!!! PLEASE ANSWER!!! WRONG ANSWERS JUST FOR POINTS WILL BE REPORTED!!!!!!!!!!!!!! Really wanna get this over with only 1 more question after this
Required volume=352π or 1105.84in³
Answer:
solution given.:
radius of outer rim[R]=5in
radius of inner rim[r]=3in
height[h]=22in
we have
volume of Styrofoam collar[V]=volume of cylinder of (outer rim -inner rim)
=πR²h-πr²h=πh(R²-r²)=π×22(5²-3²)=352π or 1105.84in³
I do not have an answer to this question: Keith buys a bad of dog food. The bag contains 16 1/2 cups of food. If his dog eats 1 3/8 cups a day, how long will the bag last?
Answer:
12 days
Step-by-step explanation:
3/8=.375
16.5 divided by 1.375 equals to 12. I hope that helps.
A storage trunk is shaped like a rectangular prism. The trunk's volume is 18 cubic feet. The length of the trunk is 6 feet, and the width of the trunk is 2 feet. What is the height of this trunk
Answer:
1.5
Step-by-step explanation:
The height is 1.5 because to find the volume of a rectangular prism, you do length x width x height. Without height, you multiply length x width (6x2) and divide that by the volume (18 divided by 12 = 1.5)
I need to know what one to pick I will send an image to go with it
Answer: um do you need help because I don’t see the question or the picture you are talking about..
Step-by-step explanation:
attachemnt
look at it
Answer: 7y(3x+2)
Step-by-step explanation:
The greatest-common-factor for the coefficients 21 and 14 is 7
Both 21xy and 14y have the variable y
So the GCF factor is 7y
PLEASE HELP AGAIN. IM TIMED
Answer:
B, 3 8/9
Step-by-step explanation:
It all comes down to equivalent fractions.
2 1/3 as an improper fraction is 7/3.
1 5/9 as an improper fraction is 14/9. 1/3 = 3/9.
With that being said 7 x 3 = 21 resulting in 21/9.
14/9 + 21/9 = 35/9.
35/9 as a mixed fraction is 3 8/9.
Helpppppppppppppppppppp
Answer:
Step-by-step explanation:
x=100 (vertically opposite angle)
How can you prove a triangle is an equilateral triangle? (4 points)
a
Use the distance formula to see if at least two sides are congruent.
b
Use the slope formula to see if any sides are perpendicular.
c
Use the distance formula to see if all three sides are congruent.
d
Use the slope formula to see if any sides are parallel.
Answer:c
Use the distance formula to see if all three sides are congruent.
Step-by-step explanation:
An equilateral triangle is a triangle which has three sides with the same lengths. If we check for congruence we are checking to see if all the sides are the same :)
To prove a triangle is an equilateral triangle by using the distance formula to see if all three sides are congruent, the correct option is C
What is the congruent triangle?Two triangles are said to be congruent if the length of the sides is equal, a measure of the angles are equal and they can be superimposed.
Given;
To prove a triangle is an equilateral triangle
Now, we have to use the distance formula: d = sqrt( (x2 - x1)² + ( y2 - y1 )²)
When 2 sides are congruent it could be a scalene triangle, so it is not enough. All 3 sides must be congruent.
Therefore, the answer will be by use the distance formula of triangle to see if all three sides are congruent.
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QUESTION 10 of 10: You learn that you can buy a used robot for $25,000. The robot can replace two people doing assembly work that are
paid $19 per hour. About how long would it take for the robot to pay for itself in labor savings?
0000
O a) 640 hours
b) 658 hours
c) 712 hours
d) 755 hours
Answer:
B. 658 Hours
Step-by-step explanation:
All you do is divide.
$19 for every hour, it's 2 persons so,
$38 for every hour.
so,
25,000/38
= 657.894736842 which is about 658 so,
= 658 Hours
It would take 658 hours for the robot to pay for itself in labor savings
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
The robot can replace two people doing assembly work that are paid $19 per hour.
Let us assume it would take x hours for the robot to pay for itself in labor savings
(19 + 19)x = 25000
38x = 25000
x = 657.9
It would take 658 hours for the robot to pay for itself in labor savings
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Help please and no links
Answer:
1) should be B
2) should be C
Step-by-step explanation:
