There are 60 children in a club.
In the club, the ratio of the number of girls to the number of boys is 3:1
3/5 of the girls play a musical instrument.
4/5 of the boys play a musical instrument.
What fraction of the 60 children play a musical instrument?
(4 marks)
What is the linear function equation represented by the graph?
f (x)
Enter your answer in the box.
f(x)
The linear function equation represented by the graph will be f(x) = \(-\frac{x}{3} - 3\).
Let y = f(x)
Given, when x = 0, y = -3
and when y = 0, x = -9
(x₁ , y₁) = (0, -3)
(x₂ , y₂) = (-9, 0)
Now linear equation
\(\frac{y - y_{1} }{x - x_{1} } = \frac{y_{2} - y_{1} }{x_{2} - x_{1} }\)
\(\frac{y - (-3) }{x - 0 } = \frac{0 - (-3) }{-9 - 0 }\)
y+3 = \(-\frac{x}{3}\)
y = \(-\frac{x}{3} - 3\)
or f(x) = \(-\frac{x}{3} - 3\)
Therefore, the linear function equation represented by the graph will be f(x) = \(-\frac{x}{3} - 3\).
To learn more about linear function equations:
https://brainly.com/question/29083843
What is the probability of randomly picking an ace of hearts from a standard deck of playing cards? Assume there are no jokers in the deck.
A. 1/52
B. 3/52
C. 1/13
D. 1/4
The probability of picking an ace of hearts from a standard deck of playing cards is 1/52.
Consider a standard deck of cards.
We know that a standard deck of cards contains 52 cards.
So, total number of cards in the standard deck of cards = 52 cards
Now, we have to assume that there are no jokers in the set of cards.
We have to find the probability of picking an ace of hearts from a standard deck of playing cards.
For that we need to first find the number of cards which are ace of hearts.
Number of cards which are ace of hearts = 1
Probability of picking an ace of hearts from a standard deck of playing cards is,
P = Number of ace of hearts / Total number of cards
= 1/52
Hence the probability is 1/52.
Learn more about Probability here :
https://brainly.com/question/29779138
#SPJ1
Solve this equation h + 17 = 40
Thanks!
Answer:
H= 40-17
H= 53
Therefore, h=23
Answer:
h=23
Step-by-step explanation:
Since h plus 17 is equal to 40, h needs to be a number that adds to 17 to get 40. Therefore, you can subtract 17 from 40 to get 23. If you add it into the equation you get 23+17=40 which is correct.
Can be written in Simplest form
Answer:
8\(\sqrt[3]{2}\)
Step-by-step explanation:
The cube root of -2 to the power of 10 is;
(-2)^10=2^10
2^10=(2^3)*(2^3)*(2^3)*2
You can factor out 2^3=8 of the cube root
So you get 8 times the cube root of 2
Reflect (1,‐4) across the x‐axis what is the reflected ordered pair?
Answer:
(1,4)
Step-by-step explanation:
(1,-4) is over 1 and down negative 4 so reflected over the x-axis(the horizontal one) it would be four up so the answer is (1,4)
Answer: (1,4)
Step-by-step explanation:
The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same. For example, when point P with coordinates (1,-4) is reflecting across the X axis and mapped onto point P', the coordinates of P' are (1,4)
Jerry can eat 24 hot dogs in 6 minutes. They want to know how many minutes (m) it would take them to eat 35 hot dogs if they can keep up the same pace. How many minutes would Jerry need to eat 35 hot dogs?
PLZ HELP
Answer: 8 minutes and 45 seconds or 8.75 minutes
Step-by-step explanation:
Find hot dogs per minute
24/6=4 hot dogs per minute
35/4=8.75
So jerry needs 8 minutes and
60x0.75= 45 seconds
A potter made 4080 diyas in the month of September. If he made the same number of diyas each day, how many diyas did he make in a week?
15. The solutions to (x+4)2 - 2 = 7 are
1) -4+ 5
3) -1 and -7
2) 4+ 5
4) 1 and 7
I
Answer:
Step-by-step explanation:
(x + 4)^2 - 2 = 7 simplifies to
(x + 4)^2 = 5
We must isolate x. To do this, take the square root of both sides, obtaining:
x + 4 = ±√5
There are two roots/solutions. They are:
x = -4 + √5 and x = -4 - √5
You must include the square root operator (√). Use " ^ " to denote exponentiation.
The solutions to the given equation (x + 4)² - 2 = 7 when calculated are; 1 and 7
How to Solve Algebra Problems?We are given the equation as;
(x + 4)² - 2 = 7
Add 2 to both sides to get;
(x + 4)² = 9
Find the square root of both sides to get;
x + 4 = ±3
Thus;
x = 3 + 4 and x = -3 + 4
x = 1 and 7
Read more about Algebra at; https://brainly.com/question/4344214
#SPJ2
Factor the following:
−5x2−20x
Answer:
-10(1+2x)
Step-by-step explanation:
-10-20x
-10(1+2x)
848 runners entered a race. 274 more entered before
the race started. How many runners are in the race?
Answer:
1122
Step-by-step explanation:
Answer:1122
Step-by-step explanation: Adding 848, to 274= 1122.
Indicate the method you would use to prove the two 's . If no method applies, enter "none".
SSS
ASA
SAS
AAS
None
The method you would use to prove the two triangles are congruent include the following: B. ASA.
What are the properties of similar triangles?In Mathematics and Geometry, two (2) triangles are said to be similar when the ratio of their corresponding side lengths are equal and their corresponding angles are congruent.
Additionally, the lengths of corresponding sides are proportional to the lengths of corresponding altitudes when two (2) triangles are similar.
In Mathematics and Geometry, ASA is an abbreviation for Angle-Side- Angle and it states that when two (2) angles and their included side in two (2) triangles are congruent, then the triangles are said to be congruent.
Read more on triangle here: brainly.com/question/22891315
#SPJ1
Missing information:
The question is incomplete and the complete question is shown in the attached picture.
you did not provide enough information to answer the question
. Laura and Alicia both exercise 5 days a week. Laura exercises for 30 minutes each day. Alicia exercises for 45 minutes each day. How much longer does Alicia exercise than Laura each week?
Answer: 115
Step-by-step explanation: because Laura exercises 150 minuets in all and Alicia exercises 265 in all. so you subtract
265-150 and you get 115
For two n by n square matricies A and B,
suppose rankA = rankB = n-1.
Can rank(AB) become less than n-1 ?
(e.g. rank (AB) = n-2)
If so, I humbly ask you for an example.
Thank you very much.
No, the rank of the product of two n by n square matrices A and B, denoted as AB, cannot be less than n-1 if both A and B have ranks of n-1.
According to the Rank-Nullity theorem, for any matrix M, the sum of its rank and nullity is equal to the number of columns in M. In this case, the number of columns in AB is n, so the sum of the rank and nullity of AB must be n.
If rank(A) = rank(B) = n-1, it means that both A and B have nullity 1. The nullity of a matrix is the dimension of its null space, which consists of all vectors that get mapped to the zero vector when multiplied by the matrix. Since both A and B have rank n-1, their null spaces consist only of the zero vector.
Now, considering AB, if the rank of AB were less than n-1, it would mean that the nullity of AB is greater than 1.
However, this would violate the Rank-Nullity theorem since the sum of the rank and nullity of AB must be n, which is the number of columns.
Therefore, if rank(A) = rank(B) = n-1, the rank of AB cannot be less than n-1.
For more such questions on rank
https://brainly.com/question/28839672
#SPJ8
Please help!
Explain how changes in the dimensions of a cube dimensions affect the volume of a cube. Be specific, explaining how much the volume will change with each increase of 1 unit on the side lengths.
Answer:
Difference = 3x² + 3x + 1
See Explanation
Step-by-step explanation:
Required: How changes in sides of a cube affects its volume.
Take for instance the side of the cube is x.
The initial volume would be:
Volume = x * x * x
Volume = x³
When then dimension is increased by 1 unit, the new volume would be
Volume = (x + 1) * (x + 1) * (x + 1)
Expand the brackets
New Volume = (x² + 2x + 1)(x + 1)
New Volume = x³ + 3x² + 3x + 1
[Calculate the difference between both volumes]
Difference = New Volume - Initial Volume
Difference = x³ + 3x² + 3x + 1 - x³
[Collect like terms]
Difference = x³ - x³ + 3x² + 3x + 1
Difference = 3x² + 3x + 1
So, there will be a difference of 3x² + 3x + 1 when the dimension is increased from x to x + 1
Take for instance: a dimension of 2 units is increased to 3 units
Initial Volume = 2³ = 8
New Volume = 3³ = 27
Difference = 27 - 8
Difference = 19
Using the derived formula (x = 2)
Difference = 3x² + 3x + 1
Substitute 2 for x
Difference = 3 * 2² + 3 * 2 + 1
Difference = 3 * 4 + 6 + 1
Difference = 12 + 6 + 1
Difference = 19
Consider the statement:
20% of 25 is 5
Value: 5
The number 5 is the
The number 25 is the
The number 20 is the
Answer:
5 is the correct answer
Step-by-step explanation:
20 divide by 100 because it is in percent and 20 miltiply by 100 and there is the sign of multiply (of) is also known as multiply soo 20\100 * 25 will be the answer 5
What are three consecutive multiples of 3 if 2/3
of the sum of the first
two numbers is 1 greater than the third number?
The three consecutive multiples of 3 are 15, 18 and 21
To solve this problem
First, let's determine three successive multiples of 3:
The subsequent two would be "x+3" and "x+6" if we call the initial number "x".
Since we are aware that the third number (x+6) is one more than the first two numbers (x + x+3), we can write the following equation:
2/3(x + x+3) = (x+6) + 1
Simplifying this equation, we get:
2/3(2x+3) = x+7
Multiplying both sides by 3, we get:
2(2x+3) = 3(x+7)
Expanding and simplifying, we get:
4x + 6 = 3x + 21
Subtracting 3x and 6 from both sides, we get:
x = 15
Therefore, the three consecutive multiples of 3 are 15, 18 and 21
Learn more about consecutive multiples here : brainly.com/question/22081489
#SPJ1
Guys help me please .
Dilate the line below by a scale factor k = 2 with the center of dilation at point A(3,4)
Answer:
b
Step-by-step explanation:
An Olympic-size swimming pool holds approximately 6×105 gallons of water. The capacity of this swimming pool is between which interval?
The capacity of this swimming pool is between B. 500 gallons to 1,000 gallons.
What is the capacity?Capacity refers to the product of the length, width, and height of a three-dimensional object or space.
The capacity of an object means the same as its volume.
Olympic-size swimming pools have the following standard dimensions:
Length = 50 m
Width = 25 m
Height = 2 m
Capacity of an Olympic swimming pool = 2,500 m³ (50 x 25 x 2)
= 660,000 gallons (2,500 x 1,000 ÷ 3.785)
An interval estimate shows the lower and upper limits.
6 x 105 gallons = 630 gallons
Thus, the capacity of the swimming pool is Option B.
Learn more about volume or capacity at https://brainly.com/question/463363
#SPJ1
Question Completion with Answer Options:A. 100 gallons to 500 gallons
B. 500 gallons to 1,000 gallons
C. 1,000 gallons to 1,500 gallons
D. 1,500 gallons to 2,000 gallons
he program recommends a constant intensity for 3 visits, increasing intensity over 3 visits, and then decreasing intensity for 3 visits before restarting the pattern. Which sets of values could be the intensities of Amber’s exercise during the fourth, fifth, and sixth visits? Select three options.
63%, 63%, 63%
66%, 69%, 72%
66%, 62%, 58%
63%, 65%, 67%
67%, 72%, 77%
Sets of values that could be the intensities of Amber’s exercise during the fourth, fifth, and sixth visits are -
66%, 69%, 72%
63%, 65%, 67%
What is intensity?
In physics, the power transferred per unit area is known as the intensity or flux of radiant energy, where the area is measured on a plane perpendicular to the direction of the energy's propagation.
The program recommends a pattern of constant intensity for 3 visits, increasing intensity over 3 visits, and then decreasing intensity for 3 visits before restarting the pattern.
Let's call the starting intensity level "x".
Then the intensity levels for the first 3 visits are all equal to x, the intensity levels for the next 3 visits are increasing, and the intensity levels for the following 3 visits are decreasing.
To determine which sets of values could be the intensities of Amber's exercise during the fourth, fifth, and sixth visits, we need to follow the pattern.
If the intensity level for the first 3 visits is x, then the intensity levels for the next 3 visits are x plus some value y, and the intensity levels for the following 3 visits are x plus some value z, where y and z are positive.
If we assume that the initial intensity level x is some value between 60% and 70%, then we can eliminate the last option of 67%, 72%, and 77% because the initial intensity level is too high.
Now let's check the remaining options -
63%, 63%, 63%: This set of values corresponds to a pattern of constant intensity for all 9 visits, which is not consistent with the program's recommendation.
Therefore, this option is not valid.
66%, 69%, 72%: This set of values corresponds to a pattern of increasing intensity over 3 visits, which is consistent with the program's recommendation.
Therefore, this option is valid.
66%, 62%, 58%: This set of values corresponds to a pattern of decreasing intensity over 3 visits, which is not consistent with the program's recommendation.
Therefore, this option is not valid.
63%, 65%, 67%: This set of values corresponds to a pattern of increasing intensity followed by decreasing intensity, which is consistent with the program's recommendation.
Therefore, this option is valid.
Therefore, there are only two valid options -
66%, 69%, 72%
63%, 65%, 67%
To learn more about intensity from the given link
https://brainly.com/question/28145811
#SPJ1
A closet in Shivani's house is 2 yards by 1 yard. How much would it cost to put a new floor in the closet if the flooring costs $38.00 per square yard?
The amount it would cost to put a new floor in the closet is $76.00
Calculating how much it would cost to put a new floor in the closetFrom the question, we are to calculate how much it would cost to put a new floor in the closet
From the given information,
A closet in the house is 2 yards by 1 yard.
To determine how much it would cost to put a new floor in the closet,
First,
We calculate the area of the closet
Area of the closet = 2 yard × 1 yard
Area of the closet = 2 square yards
Now,
From the given information,
The flooring costs $38.00 per square yard
Thus,
The amount it would cost to put a new floor in the closet is
2 × $38.00
= $76.00
Hence,
The amount it would cost is $76.00
Learn more on Calculating cost here: https://brainly.com/question/1662561
#SPJ1
There are 8 ounces in a cup, 2 cups in a pint, 2 pints in a quart, and 4 quarts in a gallon.
1 L ≈ 0.26 gallons
6 kL ≈ fl oz
6 kiloliters are approximately equal to 202,884.14 fluid ounces.
We have,
To convert 6 kiloliters (kL) to fluid ounces (fl oz), we need to use the conversion factor between these two units.
The conversion factor states that 1 kiloliter is equal to 33814.0227 fluid ounces.
This means that for every kiloliter, there are 33814.0227 fluid ounces.
To convert 6 kiloliters to fluid ounces, we multiply the given value (6 kL) by the conversion factor (33814.0227 fl oz/kL).
= 6 kL x 33814.0227 fl oz/kL
= 202884.1362 fl oz
Therefore,
6 kiloliters are approximately equal to 202,884.14 fluid ounces.
Learn more about unit conversion here:
https://brainly.com/question/13899873
#SPJ1
Lance had 24 apps on his phone. If the ratio of educational apps to gaming apps is 5:1, how many educational apps are there?
help me with this
Solve x+9=7 show work
Answer: x = -2
x + 9 = 7, Move the constant to the right.
x =7 -9 now calculate that.
then you get x = -2
Hope that helps ya out :D
Answer:
x+9=7
So x= 7-9
( 9 became -9 because we brought it back to the other side to have the x alone and the digits alone )
So x= -2
Two student clubs were selling t-shirts and school notebooks to raise money for an upcoming school event. In the first few minut
notebooks, and made $19. Club B sold 1 t-shirt and 1 notebook, for a total of $8.
-
Use matrices to solve the equation and determine the cost of a t-shirt and the cost of a notebook. Show or explain all necessary:
Using matrices the simultaneous equation is solved to get x = 3 and y = 5
How to solve the simultaneous equation using matricesThis method required finding determinants in three occasions then dividing
The given equation
\(\left[\begin{array}{cc}3&2&\\1&1\\\end{array}\right] \left[\begin{array}{c}x\\y\\\end{array}\right]= \left[\begin{array}{c}19\\8\\\end{array}\right]\)
the determinant is
\(\left[\begin{array}{cc}3&2&\\1&1\\\end{array}\right]\)
3 * 1 - 2 * 1 = 3 - 2 = 1
Solving for x
determinant while replacing x values
\(\left[\begin{array}{cc}19&2&\\8&1\\\end{array}\right]\)
19 * 1 - 2 * 8 = 19 - 16 = 3
solving for x = 3/1 = 3
Solving for y
determinant while replacing y values
\(\left[\begin{array}{cc}3&19&\\1&8\\\end{array}\right]\)
3 * 8 - 19 * 1 = 24 - 19 = 5
solving for y = 5/1 = 5
Learn more about simultaneous equations at:
https://brainly.com/question/148035
#SPJ1
PLS HURRY UP I REALLY NEED THIS.
(c) If you are given two positive numbers and three negative numbers, determine the sign of the product. Is it positive or negative? Write your answer in complete sentences starting with the following sentence frame:
Finding the product of two positive numbers and three negative numbers will give us a negative (positive or negative) answer because ________________________________________ (explain why for full credit).
Answer:
Finding the product of two positive numbers and three negative numbers will give us a negative answer because + x - is _ ..positive *negative is negative
Plss HELP I’LL GIVE BRAINLIEST!!!!!
A right rectangular prism is shown. The two dimensional net is also shown. Find the surface area of this prism.
A)
20 cm?
B)
36 cm2
C)
54 cm
D)
58 cm2
Answer:
the answer is D:)
Step-by-step explanation:
Let GH be the directed line segment beginning at point G(4,4) and ending at point H(-7,-1). Find the point P on the line segment that partitions the line segment into the segments GP and PH at a ratio of 5:6.
The coordinates of point P are (-1, 1 8/11).
We have,
G(4, 4) and H(-7, 1)
m :n = 5:6
Using Section formula
x = (mx₂ + nx₁)/ (m+n) and y = (my₂ + ny₁)/ (m+n)
Here, x₁ = 4, y₁ = -7, x₂ = 4 and y₂ = -1
So, x = (5(-7) + 6(4))/ 11 and y = (5(-1) + 6(4))/ 11
x = -35+24/11 and y = -5 + 24/11
x = -11/11 and y = -19/11
x = -1 and y = 1 8/11
Learn more about Section Formula here:
https://brainly.com/question/30242630
#SPJ1
Remove all perfect squares from inside the square root. Assume yyy is positive.
\sqrt{39y^9}=
39y
9
The final expression is
sqrt (39y9) = y4 • sqrt(39y) assuming y as positive.
Rewrite
39 y ^9 as ((y^2)^2)^2 . 39 y
Factor out y^8.
√39(y^8 . y).
Rewrite \(y^8 as (y^4)^2\)
√39(y^4)^2 . y).
Rules for simplifying variables which may be raised to a power:
(1) variables with no exponent stay inside the radical
(2) variables raised to power 1 or (-1) stay inside the radical
(3) variables raised to an even exponent: Half the exponent taken out, nothing remains inside the radical. examples:
sqrt(x8)=x4
sqrt(x-6)=x-3
(4) variables raised to an odd exponent which is >2 or <(-2) , examples:
sqrt(x5)=x2•sqrt(x)
sqrt(x-7)=x-3•sqrt(x-1)
Applying these rules to our case we find out that
SQRT(y9) = y4 • SQRT(y)
Therefore, sqrt (39y9) = y4 • sqrt(39y)
Learn more about Square roots here :
https://brainly.com/question/29286039
#SPJ4
13 students out of 25 have an ipad at home what person of food do not have an ipad at home
Answer:
52%
Step-by-step explanation:
Covert fraction (ratio) 13/25 Answer:52%