Answer:
Number of girls = 15
Step-by-step explanation:
girls : boys = 5 : 4
Number of girls = 5x
Number of boys = 4x
Total students = 27
5x +4x = 27
9x = 27
x = 27/9
x = 3
Number of girls = 5x = 5*3 = 15
Erik correctly rounds three numbers. One and StartFraction 7 over 29 EndFraction rounds to 1 One and five-sixths rounds to 2 0.16 rounds to 0 Which shows the numbers One and StartFraction 7 over 29 EndFraction, One and five-sixths, and 0.16 in order from greatest to least?30pts
Answer:
From greatest to least
One and five-sixth rounded to 2
One and StartFraction 7 over 29 rounded to 1
0.16 rounded to 0
Step-by-step explanation:
1+7/29=29+7/29
=36/29
=1.24
Approximately
=1
1+5/6=6+5/6
=11/6
=1.83
Approximately
=2
0.16
Approximately =0
From greatest to least
One and five-sixth rounded to 2
One and StartFraction 7 over 29 rounded to 1
0.16 rounded to 0
Kelly and Greta are asked to write an equation for the scenario below. "One person was able to plant 4 trees in the same amount of time that 5 people working together were able to plant 20 trees." The girls agree that x represents the number of people working and y represents the number of trees planted. Kelly wrote the equation y = one-fourth x, and Greta wrote the equation y = 4 x. Which person is correct, and why?
Answer:
Greta is correct. The answer is y = 4x
Step-by-step explanation:
This is because one person is able to plant four trees and five people are able to plant 20 in the same amount of time which means 4 trees is to 1 person. In other words if you substitute the values into the equation you will see that x = 1 in the first scenario and x = 5 in second scenario.I will work out the second scenario below.
y = 4x (where y = 20)
20 = 4(x)
[tex]\frac{20}{4} = \frac{4x}{4}[/tex]
5 = x
OR
y = 4x (where x = 5)
y = 4 * 5
y = 20
The equation which represents the number of trees planted y for the x number of people will be y = 4x thus Greta will be right.
How to form an equation?Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
An equation is a set of variables that are constrained through a situation or case.
As per the given,
1 person plants 4 trees.
x = 1 and y = 4
y/x = 4
5 people plant 20 trees
x = 5 and y = 20
y/x = 20/5 = 4
y = 4x
Thus, y = 4x will be correct.
Hence "The equation which represents the number of trees planted y for the x number of people will be y = 4x thus Greta will be right".
For more about the equation,
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The sale price of last year’s hottest game is 45% off the retail price. The game sold last year for $92.00. What is the sale price? A. $41.40 B. $50.60 C. $87.86 D. $133.40
Answer: D $133.40
Step-by-step explanation:
SP $92.00
Discount = 45%
Sale price = 92 x 1.45 = 133.40
Answer:
D. $133.40
Step-by-step explanation:
Hope this helps ^_^
Can u simplify this for me
Answer:
-5/11
Step-by-step explanation:
They are both divisible by 3.
15 becomes simplified to 5 and 33 becomes simplified to 11.
Then, just cancel off the 'z's from both sides and then you get -5/11.
can someone help i have limited time of 40 mins to answer this question and i barley understand
Answer:
7
Step-by-step explanation:
The scale factor is how much something is increased by or decreased by.
From the question you can see that the sculpture is 49cm while the model is 7cm length wise
49/7 = 7
When you look at how wide it is it
35/7 = 7
When you look at how tall it is
63/9 = 7
Therefore the scale factor of the model to the sculpture is 7
If this has been useful please consider making this the Brainliest answer!
Answer:
Scale Factor = 7
Step-by-step explanation:
We'll take the ratio of any side of the sculpture and the model.
Taking the ratio of any sides will give the scale factor
Scale Factor = [tex]\frac{AnySideOfSculpture}{AnySideOfModel}= \frac{49}{7} = \frac{35}{5} = \frac{63}{9}= 7[/tex]
So, We get the scale factor as 7.
Elizabhet debe preparar carapulcra para 32 personas si se basa en la receta que se muestra que cantidad necesitara de cada ingrediente carapulcra 8 porciones un medio de papa seca un medio kg de carne de chancho 1 cebolla grande 3 cucharadas de aji panca un entero un medio cucharadas de ajos molidos 1 cucharada de sal
Step-by-step explanation:
Para hacer las porciones para 32 personas, multiplique cada cantidad de ingrediente por 4 ya que la receta proporciona 8 porciones y 8 * 4 = 32
Papa seca = [tex]\frac{1}{2} *4[/tex]
= 2 papas secas
Cerdo = [tex]\frac{1}{2} *4[/tex]
= 2 kg de carne de cerdo
Cebollas = 1 * 4
= 4 cebollas grandes
Aji panca = 3 * 4
= 12 cucharadas de aji panca
Ajo molido = [tex]1\frac{1}{2} *4[/tex]
= [tex]\frac{3}{2} *4[/tex]
= 6 cucharadas de ajo molido
Sal = 1 * 4
= 4 cucharadas de sal
factorising quadratics 1
will give brainiless:)
Attached the photo
Need all completed
Answer:
i) (x+1)(x+2)
ii) (x+5)(x+9)
Can someone please help me I’m stuck
Answer: 10
Step-by-step explanation: Because C is the mid-segment of DB, so it is split in half. So X is the same as the other half (10).
Answer:
8
Step-by-step explanation:
These triangles are similar triangles, so we can use ratios to solve
12 x
----- = --------
15 10
Using cross products
12*10 = 15x
120 = 15x
Divide by 15
120/15 =15x/15
8=x
Last year, Jora spent
30% of his salary on rent
2⁄5 of his salary on entertainment
¼ of his salary on living expenses.
He saved the rest of his salary.
Jora spent £3600 on living expenses.
Work out how much money he saved.
Answer:
Saved Money = 189.47
Step-by-step explanation:
find the sum percent of how much he spent:
30% + 40%+ 25% = 95%
Given That:
95% = 3600
So, he saved only 5%
5% = 3600/19 = 189 pounds
Hope this helps
ASAP HELP Which equation is equivalent to: 3r=90−5 ?
A. 3r+5=90
B. −3r=−90−5
C. −3r=90+5
D. 3r=90+5
Answer:
The answer is A.
This is because adding 5 to both sides of the original equation gives us A.
An equivalent equation to 3r = 90 - 5 is 3r + 5 = 90
The correct answer is an option (A)
What is an equation?"It is a mathematical statement which consists of equal symbol between two algebraic expressions."
What is equivalent equations?"The equations that have the same answer or solution."
For given question,
We have been given an equation 3r = 90 - 5
We know that the addition property of equality which states that when the same quantity is added to both sides of an equation, the equation does not change.
⇒ 3r = 90 - 5
Add 5 on the both the sides of the equations.
⇒ 3r + 5 = 90 - 5 + 5
⇒ 3r + 5 = 90 + 0
⇒ 3r + 5 = 90
Therefore, an equivalent equation to 3r = 90 - 5 is 3r + 5 = 90
The correct answer is an option (A)
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Dalton has $44,759 in a savings account that earns 9% annually. The interest is not compounded. How much will he have in 1 year? Use the formula i=prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in a years.
Answer: total amount after 1 year will be 44759 + 4028.31 = 48,787.31
Step-by-step explanation:
SI = prt / 100
= 44759 x .09 x 1
= 4028.31
The magnitude, M, of an earthquake is defined to be M = log StartFraction I Over S EndFraction, where I is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and S is the intensity of a “standard” earthquake, which is barely detectable. What is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? Use a calculator. Round your answer to the nearest tenth.
Answer:
3.0
Step-by-step explanation:
The magnitude of an earthquake is given as:
[tex]M = log_{10}\frac{I}{S}[/tex]
where I = intensity of earthquake
S = intensity of standard earth quake
When the intensity of the earthquake is 1000 times the intensity of a standard earth, that means that:
I = 1000S
Therefore:
[tex]M = log_{10}\frac{1000S}{S} \\\\M = log_{10}1000\\\\M = 3.0[/tex]
The magnitude is 3.0
Answer: it’s B on edge
Step-by-step explanation:
Need help as soon as possible
Answer:
CosC = [tex]\frac{3}{5}[/tex]
Step-by-step explanation:
Cos C = [tex]\frac{Adjacent}{Hypotenuse}[/tex]
Where Adjacent = 24 , Hyp = 40
Cos C = [tex]\frac{24}{40}[/tex]
In simplest form
CosC = [tex]\frac{3}{5}[/tex]
How much smaller is 32.923 than 32.9705?
Answer:
It is 0.0475 smaller than 32.9705
32.9705 - 32.923 = 0.0475
The Naturally Made Bath and Body store pays $550 a month for rent and utilities. The average cost for its products to be manufactured is about $3.00 an item. If the average price for a product sold in the store is $5.50, what will the break-even point be? Let x represent the number of products sold. The break-even point occurs when the cost function equals the revenue function. 550 + 3.00x = 5.50x Naturally Made needs to sell products to break even. The cost or revenue when it sells the break-even number of products will be $
Answer:
220 products need to be sold to break it even.
Step-by-step explanation:
550 + 3.00x = 5.50x
550 = 2.50x
220 = x
NEED HELP PLEASEEEEEEE
ABC is a triangle inscribed in a circle AB=AC=10cm , BC=16cm. The chord AE is at right angle to the chord BC at D.Calculate DE and the radius of the circle
Which equations have the same solution as x + + x = – x plus StartFraction 2 Over 3 EndFraction plus x equals StartFraction one-half EndFraction minus StartFraction 1 Over 5 EndFraction x.
Answer:
A, B and D
Step-by-step explanation:
Which equations have the same solution as [tex]\frac{3}{5} x+\frac{2}{3} +x=\frac{1}{2} -\frac{1}{5}x[/tex]
A. 8/5x + 2/3 = 1/2 – 1/5x
B. 18x + 20 + 30x = 15 – 6x
C. 18x + 20 + x = 15 – 6x
D. 24x + 30x = –5
E. 12x + 30x = –5
To find the equations with the same solution, we have to solve or x and determine if the value of x is the same for the remaining options.
[tex]\frac{3}{5} x+\frac{2}{3} +x=\frac{1}{2} -\frac{1}{5}x\\multipying \ through \ by \ 30:\\18x + 20+30x=15-6x\\collecting\ like\ terms:\\18x+30x+6x=15-20\\54x=-5\\x=\frac{-5}{54}[/tex]
A)
[tex]\frac{8}{5}x+\frac{2}{3}=\frac{1}{2}-\frac{1}{5}x\\ multipying\ through\ by \ 30\ gives:\\48x+20=15-6x\\48x+6x=15-20\\54x=-5\\x=\frac{-5}{54}[/tex]
A has the same solution
B)
[tex]18x+20+30x=15-6x\\18x+30x+6=15-20\\54x=-5\\x=\frac{-5}{54}[/tex]
B has the same solution
C)
[tex]18x+20+x=15-6x\\18x+x+6x=15-20\\25x=-5\\x=\frac{-1}{5}[/tex]
C do not have the same solution
D)
[tex]24x+30x=-5\\54x=-5\\x=\frac{-5}{54}[/tex]
D has the same solution
E)
[tex]12x+30x=-5\\42x=-5\\x=\frac{-5}{42\\}[/tex]
E do not have the same solution
Solve: (8r + 9) + 7(4r + 3) ( 1 ) 2. Solve: (3f - 9) + (-7f + 4) ( 1 ) 3. Solve: -8(-g + 6) + 4(8g + 5) ( 1 ) 4. Solve: 5(2n + 3) + (4n - 7) ( 1 ) 5. Solve: 2(-4) + (-8m) ( 1 )
Answer:
1. 36r+30
2. -4f-5
3. 40g-28
4. 14n+8
5. -8-8m
Step-by-step explanation:
Solve: (8r + 9) + 7(4r + 3) ( 1 )
8r+9+28r+21
=36r+30
Solve: (3f - 9) + (-7f + 4) ( 1 )
3f-9-7f+4
= -4f-5
Solve: -8(-g + 6) + 4(8g + 5) ( 1 )
8g-48+32g+20
=40g-28
Solve: 5(2n + 3) + (4n - 7) ( 1 )
10n+15+4n-7
=14n+8
Solve: 2(-4) + (-8m) ( 1 )
= -8-8m
A chord AB divides a circle of radius 4 cm into two segments. If AB subtends a central angle of 60°, find the area of the minor segment.
Answer:
Step-by-step explanation:
The diagram of the circle is shown in the attached photo.
Looking at triangle AOB, 2 sides are equal. It means that A= B.
Therefore, A = B = (180 - 60)/2 = 60
Therefore, triangle AOB is an equilateral triangle. AB = AO = BO = 4 cm
We would find the area of triangle AOB by applying heron's formula
Area = √s(s - a)(s - b)(s - c)
s = (a + b + c)/2 = (4 + 4 + 4)/2 = 6
Area = √6(6 - 4)(6 - 4)(6 - 4)
Area = √48 = 6.93cm²
Area of sector formed by the minor segment = area of triangle + area of minor segment
Area of sector = 60/360 × 3.14 × 4² = 8.37 cm²
Area of minor segment = 8.37 - 6.93 = 1.44 cm²
Find the standard deviation of
the given data rounded to the
nearest hundredth.
12, 53, 141, 219, 500
Answer:
√29934 ≈ 173.01
Step-by-step explanation:
Match the information on the left with the appropriate equation on the right.
Answer:
See attachment below
Step-by-step explanation:
For the first option, we are given m = - 2 / 3, b = 3. This is likely in the point - slope form y = mx + b, where m = slope and b = y - intercept. Thus, the equation of the line in point - slope form given this information, should be y = - 2 / 3x + 3. It seems as if none of the following equations match this form, so let us interchange the equation a bit,
y = - 2 / 3x + 3,
y + 2 / 3x = 3,
2x + 3y = 9 - Option C
_______________________________________________________
Next we are given m = - 3 / 2, and that this line passes through the point ( 4, - 1 ). Substitute m as - 3 / 2, x as 4, y as - 1, knowing point ( 4, - 1 ), into the form y = mx + b - solving for b.
- 1 = ( - 3 / 2 )( 4 ) + b,
b = 5,
Thus the equation in point - slope form should be y = - 3 / 2x + 5. None of the choices match this, so let us again alter the equation,
y = - 3 / 2x + 5,
2y = - 3x + 10,
- 2y = 3x - 10 - Option A
_______________________________________________________
( 6, 3 ) and ( 3, 1 ) is given to lie on this line. The slope of the line should be as follows,
Slope = 3 - 1 / 6 - 3 = 2 / 3
Now let us determine the y - intercept ( b ) by substitute one of the points, say ( 6, 3 ). In this case x = 6, and y = 3,
3 = ( 2 / 3 )( 6 ) + b,
b = - 1,
y = 2 / 3x - 1 = Option D
Take a look at the attachment below for further help;
Brandee makes an hourly wage. In the last pay period, she earned $800 for regular hours and $240 for overtime hours. Her overtime rate of pay is 50% more than her regular rate of pay "r". Write and simplify an expression in terms of "r" that represents the number of hours "h" Brandee worked in the pay period. Show your work.
Answer:
y=240x+1200
Step-by-step explanation:
What value of X is in the solution set of 8x - 6 > 12 + 2x
Answer:
x>3
Step-by-step explanation:
8x-6>12+2x
Subtract 2x from both sides:
6x-6>12
Add 6 to both sides:
6x>18
Divide both sides by 6:
x>3
Hope this helps!
Answer:
x>3
Step-by-step explanation:
8x-6>12+2x
First start distributing your numbers
the 2x will go to the left and turn to -2x and the -6 will go to the right and turn to +6
Then you will get the answer of 6x > 18
Now you will need to get the x by itself, so divide the 6 by the 18 on the right and you will get the answer.
Help If anyones awake
Last option is the correct answer
Answer:
ASA Postulate
Step-by-step explanation:
[tex] In\: \triangle TKS\: \& \: \triangle TLR\\
\angle 1 \cong \angle 2....(given) \\
TK \cong TL... (given) \\
\angle 3 \cong \angle 4....(given) \\
\therefore \triangle TKS\: \cong \: \triangle TLR.. (ASA \: Postulate) \\[/tex]
Answer:
First option is the correct choice.
Step-by-step explanation:
AAS theorem applies here to prove the claim.
Best Regards!
First gets brainliest
Answer:
11
Step-by-step explanation:
You have to convert the sentence to an equation. 17 degrees is equal to 5 degrees less than twice the temperature it was six hours ago. Solve for x.
17 = 2x - 5
22 = 2x
x = 11
It was 11 degrees six hours ago.
Please it’s urgent please❤️
Answer:
280 kg
Step-by-step explanation:
279.98... so it rounds up to 280
Answer:
58kg
Step-by-step explanation:
127 pounds to kg is 57.606 kgs
divide pounds by 2.205
find the square root of 900
Answer:
30
Step-by-step explanation:
=> [tex]\sqrt{900}[/tex]
=> [tex]\sqrt{30*30}[/tex]
=> [tex]\sqrt{30^2}[/tex]
=> 30
Answer:30
Step-by-step explanation:
A small trick that will not work all the time:
900
Split it into 2 parts (since sq. Root, 2 digits for the right part)
9 and 00
We know the sq. Root of 9 ? :3
hope it will help you
The diagram shows a metal plate in the shape of a rectangle. The rectangle has length 20 cm and width 12 cm. Two identical circles, each of diameter 6 cm, have been cut out of the plate. Work out the area of the shaded region of the metal plate. Give your answer correct to the nearest cm2. *will mark brainliest*
Answer:
A ≈ 183 cm²
Step-by-step explanation:
Step 1: Find the area of the 2 circles
A = πr²
r = 6/2 = 3
A = π(3)²
A = 9π
Since there are 2 circles, 9π(2) = 18π
Step 2: Find area of entire rectangle
A = lw
A = 12(20)
A = 240
Step 3: Subtract the area of the circles from the area of the entire rectangle
240 - 18π
Shaded area = 183.451 cm²
And we have our answer!
PLEASE AWNSER WILLMARK YOU AS BRAINLEYSS A group of seventh graders and a group of teachers at a local middle school were asked how many siblings they each have. The dot plots below show the results. Students A dot plot titled Students. A number line going from 0 to 9 labeled number of siblings. There are 2 dots above 0, 4 above 1, 7 above 2, 5 above 3, 2 above 4, and 0 above 5, 6, 7, 8, and 9. Teachers A dot plot titled Teachers. A number line going from 0 to 9 labeled Number of siblings. There is 1 dot above 0, 3 dots above 1, 2 above 2, 4 above 3, 5 above 4, 3 above 5, 1 above 6, 0 above 7, 1 above 8, and 0 above 9. When comparing the shape of the two sets of data, what conclusion can someone draw? The students tend to have fewer siblings than the teachers. The teachers tend to have fewer siblings than the students. Both the students and the teachers have a wide range of siblings. Both sets of data have the same shape.
Answer:the anS is(A):The mode for the students is{{ 2 }and the mode for the teachers is {4}
Step-by-step explanation:HOPE MY ANS HELPS CUZ I ATTEMPTED THIS QUESTION IN A
QUIZ BEFORE
