The mean annual salary paid to all employees in a company was 1500 Kenya pounds The mean annual salaries paid to male and female employees were 1560 Kenya pounds and 1260 Kenya pounds respectively. Determine the percentages of males and females employed by the company.

Answers

Answer 1

Answer:

[tex]Male = 80[/tex]%

[tex]Female = 20%[/tex]%

Step-by-step explanation:

Given

Annual Mean Salary = 1500

Annual Mean Salary (Male) = 1560

Annual Mean Salary (Female) = 1260

Required

Percentage of male and female employed

Represent male by m and female by 4

So, total employees = m + f

The mean of an observation is calculated as thus;

Mean = Summation of observation divided by number of  observations

For Male:

Annual Mean = Total Salary/Number of males

Recall that Annual Mean = 1560

Number of males = m;

The formula becomes

[tex]1560 = \frac{TotalSalary}{m}[/tex]

Multiply both sides by m

[tex]1560 * m = \frac{TotalSalary}{m} * m[/tex]

[tex]1560m = TotalSalary[/tex]

For Female:

Annual Mean = Total Salary/Number of females

Recall that Annual Mean = 1260

Number of females = f;

The formula becomes

[tex]1260 = \frac{TotalSalary}{f}[/tex]

Multiply both sides by f

[tex]1260 * f = \frac{TotalSalary}{f} * f[/tex]

[tex]1260f = TotalSalary[/tex]

Total Annual Salary = Annual Salary of Male + Annual Salary of Female

Total Annual Salary = 1560m + 1260f

The mean annual salary is calculated as thus;

Mean Annual Salary = Total Annual Salary/Total Employees

Recall that Total Employees = m + f and Mean Annual Salary = 1500

So, the formula becomes

[tex]1500 = \frac{1560m + 1260f}{m+f}[/tex]

Multiply both sides by m + f

[tex]1500(m+f) = \frac{1560m + 1260f}{m+f} * (m+f)[/tex]

[tex]1500(m+f) = 1560m + 1260f[/tex]

Open brackets

[tex]1500m+1500f- = 1560m + 1260f[/tex]

Collect like terms

[tex]1500f -1260f = 1560m - 1500m[/tex]

[tex]240f = 60m[/tex]

Divide through by 60

[tex]\frac{240f}{60} = \frac{60m}{60}[/tex]

[tex]4f = m[/tex]

Reorder

[tex]m = 4f[/tex]

At this point, the percentage male and female can be calculated;

Male = (Number of male/Total Employees) * 100%

[tex]Male = \frac{m}{m+f} * 100[/tex]%

Substitute 4f for m

[tex]Male = \frac{4f}{4f+f} * 100[/tex]%

[tex]Male = \frac{4f}{5f} * 100[/tex]%

[tex]Male = \frac{4}{5} * 100[/tex]%

[tex]Male = 0.8 * 100[/tex]%

[tex]Male = 80[/tex]%

If percentage of male = 80%

Percentage of Female = 100% - 80%

[tex]Female = 20%[/tex]%


Related Questions

John has 24 blue, 96 green, 16 grey, 16 red and 32 white marbles. If he wants to place them in identical groups without any marbles left over, what is the greatest number of groups John can make?


Help please. ;-;.

Answers

Answer:

Don't take my word for this but I think the max groups he can do is 16 because that is the lowest amount of marbles.

Step-by-step explanation:

The greatest number of groups which John can make with marbles in order to place them in identical groups without any marbles left over is 4.

What is GCF (greatest common factor)?

GCF or greatest common factor is the common number which all the term has in a group of terms. It is the number which can divide each number of the group.

John has 24 blue, 96 green, 16 gray, 16 red and 32 white marbles. He wants to place them in identical groups without any marbles left over.

To find such identical groups, we have to find the greatest common factor of all these numbers. The factors of all the numbers are,

24=2×2×2×396=2×2×2×2×2×316=2×2×2×216=2×2×2×232=2×2×2×2×2

Here, the 2×2×2 is the common factor which is appears in all the terms.

[tex]2\times2\times2=8[/tex]

Thus, the greatest number of groups which John can make with marbles in order to place them in identical groups without any marbles left over is 8.

Learn more about the GCF here;

https://brainly.com/question/219464

#SPJ2

please help me, i don't get this​

Answers

Answer:

A

Step-by-step explanation:

The rule is, whenever you plug in g(x) into f(x) or vice versa, they always must equal x. So if you plugged in g(x) into f(x), then the outcome should be x. If the output is not x, then they are not inverses.

Your answer should be A

Three functions are given below: f(x), g(x), and h(x). Explain how to find the axis of symmetry for each function, and rank the functions based on their axis of symmetry (from smallest to largest).

Answers

Answer:

three functions are

f(x) = 3(x + 4)^2 + 1

g(x) = 2x^2 - 16x + 15

h(x) = a(x - 1) - 3

Axis of symmetry for f(x) is x=-4 For g(x)

by taking the derivative

g'(x) = 4x - 16

= 4(x - 4)

The Axis of symmetry for g(x) is x=4

The Axis of symmetry for h(x) is x=1

hope it helps

The average low temperature for a town during the month of May is 53 degrees Fahrenheit. For the past 8 years, the low temperature has been not more than 11 degrees above or below that average during the month of May. Write an inequality to represent this situation. Sketch the inequality on a number line.

Answers

Answer:

8

Step-by-step exp8lanation:

Easy question for y'all ;D
About how many times larger is the world population compared to the US population? World: 7,010,000,000 US: 317,000,000.

Answers

Answer:

the United States 2020 population is estimated at 331,002,651 people at mid year according to UN data. the United States population is equivalent to 4.25% of the total world population.

Answer:

x22.1135647

Step-by-step explanation:

7,010,000,000 divide 317,000,000 =22.1135647

Write each statement as an algebraic expression. The quotient of the number that is 1 greater than a number b and the number that is twice as large as b. RMS NEED BY 3:58 today 6/20/2020

Answers

Answer:

Quotient = (1 + b)/2b

Step-by-step explanation:

The term quotient implies the result after dividing a number or expression by another number or expression.

In other words,

Quotient = Dividend/Divisor

From the question, we understand that

Dividend = Number that is 1 greater than a number b

So,

Dividend = 1 + b

And

Divisor = Number that is twice as large as b...

So, Divisor = 2 * b

Divisor = 2b

Recall that:

Quotient = Dividend / Divisor

Quotient = (1 + b)/2b

Which expression is equivalent to 10√5

Answers

Answer: square root of 500

Step-by-step explanation:

10 squared is 100

100 * the square root of 5 = the square root of 500.

1/2 divided by 2/3 = 1/2 times ?/2 = 3/?

Answers

Answer:

3, 4

Step-by-step explanation:

do KFC or KCF doesn't matter you get the same answer

1/2 times 3/2 is 3/4

if you want to make sure it is correct multiply 3/4 by 2/3 and it gives you 1/2

Answer:

1/2 ÷ 2/3 = 1/2 × 3/2 = 3/4

Step-by-step explanation:

Find the midpoint of the line segment.

Answers

Answer:

(9,-5)

Step-by-step explanation:

Find the middle of each of the x and y coordinates. Then put that together.

Answer:

The correct answer is

(9, -5)

Find the middle of each of the x and y coordinates. Then you can plug in each x/y into a coordinate. This will get you the midpoint.

Hope I could help

- Quinn :)

If f(x) = 5x – 2 and g(x) = 2x + 1, find (f+g)(x).
O A. 3x-1
O B. 4x-3
O c. 7x-1
O D. 7x-3
SHUB
Help plzzz

Answers

Answer:

C

Step-by-step explanation:

(f + g)(x) = f(x) + g(x), thus

f(x) + g(x)

= 5x - 2 + 2x + 1 ← collect like terms

= 7x - 1 → C

Answer:

it is C.

Step-by-step explanation:

find the loss percentage if cp is 400 rs and sp is 380rs

Answers

Answer:5%

Solution,

Cost price(CP)=Rs 400

Selling price (SP)=RS 380

loss percentage=?

Now,

Loss percentage=CP-SP/CP*100%

=400-380/400*100%

=20/400*100%

=5%

Hope it helps..

Good luck on your assignment

5% is the correct answer

Solve for x in the diagram below.
(2x + 30°
40°
40°
т

Answers

Answer:

x = 35°

Step-by-step explanation:

assuming that the straight line at the bottom of the figure is actually a straight line, that means all the angles along that straight line must add up to 180 °

i.e.

40 + (2x+30) + 40 = 180

40 + 2x+30 + 40 = 180

110 + 2x = 180  (subtract 110 from both sides)

2x = 180 - 110

2x = 70

x = 35

Answer:

x=35

Step-by-step explanation:

The 3 angles are on a straight line. A straight line is equal to 180 degrees. Therefore, the 3 angles are supplementary and add to 180 degrees.

40+2x+30+40=180

Combine like terms. Add all the terms on the left side without a variable.

2x+(40+30+40)=180

2x+110=180

We want to find out what n is. In order to do this, we have to get n by itself. Perform the opposite of what is being done to the equation. Keep in mind, everything done to one side, has to be done to the other.

110 is being added to 2x. The opposite of addition is subtraction. Subtract 110 from both sides.

2x+110=180-110

2x=180-110

2x=70

x is being multiplied by 2. The opposite of multiplication is division. Divide both sides by 2.

2x/2=70/2

x=70/2

x=35

please help i attached the question as a picture

Answers

Answer:

0, 1, and 4

Step-by-step explanation:

Since the denominator of a fraction must not be 0 or it would be undefined, when the denominator is 0 is where you will find your restrictions:

[tex]x^3-5x^2+4x=0 \\\\x(x^2-5x+4)=0 \\\\x(x-1)(x-4)=0[/tex]

Therefore, by the zero product property, the restrictions are 0, 1, and 4. Hope this helps!

Answer:

X cannot equal 0,1,4

Step-by-step explanation:

The restrictions are when the denominator goes to zero

x^3 -5x^2 +4x

Factor an x

x( x^2 -5x+4)

x( x-4) (x-1)

Set each term to zero

x=0  x-4 =0   x-1=0

x=0  x=4   x=1

X cannot equal 0,1,4

Question 4
A book sold 31,300 copies in its first month of release. Suppose this represents 9.9% of the number of copies sold to date. How many copies have been sold to date?

Answers

Answer:

313131 total books

Step By Step Explanation: We can use the equation 9.9%x=31000 and x represents the total number of books.

We could also convert this percent to a decimal by moving it two places to the left (0.99).

Nevertheless, we can divide both sides by 9.9% to find that the total number of books is 313131 books.

The M virus has a diameter of 5 x 10^-7meters, while the P virus measures about 2 x 10^-8meters in diameter. A) is the M virus or P virus larger in diameter? B) how many times as larger is the larger virus than the smaller virus?

Answers

Answer:

(A) The M virus is larger than the P virus in diameter

(B) Diameter of virus M is 25 times the diameter of virus P

Step-by-step explanation:

Notice that the values given are in the so called "scientific notation", and which involves in this case negative exponents for the multiplier 10.

So we can write these values in decimal form for easier comparison of which one is he largest one:

Diameter of M virus = [tex]5\,*\,10^{-7}\,m = 0.0000005\,\,m[/tex]

Diameter of P virus = [tex]2\,*\,10^{-8}\,m = 0.00000002\,\,m[/tex]

Which clearly shows that virus M is larger than virus P in diameter

The quotient between diameters will give us the answer to how many times larger virus' M diameter is:

[tex]\frac{M}{P} =\frac{0.0000005}{0.00000002} \\\frac{M}{P} =25[/tex]

hi can anybody help me please i will mark them as a brainlest

Answers

Answer:

area 4.5

Step-by-step explanation:

C has the largest Area. It's area is 4.5

hope this helps

Answer:

C has the largest area.

Step-by-step explanation:

3x3=9, 9/2=4.5

Each question on a multiple-choice exam has four choices. One of the choices is the correct answer, worth 5 points, another choice is wrong but still carries partial credit of 1 point, and the other two choices are worth 0 points.

If a student picks answers at random, what is the expected value of his or her score for a problem?
_____points

If the exam has 30 questions, what is his or her expected score?
_____points

Answers

Answer:

1.5

45

Step-by-step explanation:

The probability for each answer is 1/4

(5+1+0+0)/4 = 6/4= 1.5

Each question has an expected value of 1.5 points.

The expected score of the test is 30*1.5= 45 points

plz answer im desperate thank you!

Answers

The answer is 4 hope this helps

Hey!!

(56-24)/8

=32/8

=4

The right answer is 4.

hope it helps

Good luck on your assignment

Sharyn needs yards of fabric to make a dress for herself and yards of the same fabric to make a matching dress for her daughter. If she buys yards of fabric, how much will she have left over?
A.
yards
B.
yards
C.
yards
D.
of a yard

Answers

Answer: The answer is C 5/8 yards

Step-by-step explanation:

How do I do this?

Calculate the number of protons and the number of neutrons for each of the below

Answers

Answer:

to calculate the number of protons and neutrons, you can look at the element on the periodic table. the number of protons is equal to the atomic number of the element (for example, hydrogen is the first element on the periodic table, so it has 1 proton).

The number of neutrons is the mass number (listed on the periodic table as well) - the number of protons, aka the atomic number.

for example, for the element krypton, we take the mass number, 83.80, and round it up to 84. Then we subtract it's atomic number, 36, from it, to get 48, which is the number of neutrons in the atom

somebody please help me

Answers

Answer:

382.5 square inches

Step-by-step explanation:

The surface area of a 3D object is the sum of the area of all of the surfaces. Therefore, the surface area of this prism is:

[tex]9\cdot 13.5 + 2(\dfrac{1}{2} \cdot 10\cdot 9)+ 9\cdot 9 + 10\cdot 9= 382.5[/tex] square inches.

Hope this helps!

What is the volume of the cone to the nearest tenth? A) 401.2 yd3 B) 421.4 yd3 C) 484.3 yd3 D) 536.2 yd3

Answers

Answer:

Option (D). 536.2 yd³

Step-by-step explanation:

Radius of the circular base of the cone = 8 yd

Height of the given cone = 8 yd

Formula for the volume of the cone = [tex]\frac{1}{3}\pi r^{2}h[/tex]

Here r = radius of the circular base of the cone

h = height of the cone

By substituting the values of r and h in the formula,

V = [tex]\frac{1}{3}\pi (8)^2\times (8)[/tex]

   = [tex]\frac{1}{3}(512\pi )[/tex]

   = 526.165

   ≈ 526.2 yd³

Therefore, volume of the given cone is 526.2 yd³.

Option (D) will be the answer.

Answer:

D

Step-by-step explanation:

There are five more blue blocks than green blocks. Three times the number of green blocks, increased by double the number of blue, equals 95. How many of each colour are there?

Answers

Answer:

22 blue blocks

17 green blocks

Step-by-step explanation:

Hi, to answer this question we have to write a system of equations:

There are five more blue blocks than green blocks.

So, the number of blue blocks (b) is equal to the number of green blocks (g) plus 5.

b = g+5

Three times the number of green blocks (3g), increased by double the (+2b) number of blue, equals 95.  

3g+2b =95

The system is  

b = g+5

3g+2b =95

Replacing b=g+5 in the second equation:

3g + 2 (g+5)=95

Solving for g:

3g +2g+10 =95

5g = 95-10

5g=85

g= 85/5

g= 17

Replacing g=17 in the first equation:

b = g+5

b = 17 +5

b=22

A line passes through (-5, -3) and is parallel to -3x - 7y= 10. The equation of the line in slope-intercept form is
Y=-3/7x-36/7
Y=-3/7x-6/7
Y=-7/3x-36/7
Y=-7/3x-6/7

Answers

Answer:

A.

Step-by-step explanation:

-3x-7y = 10

In slope - intercept form

y = -3/7x - 10/7

Since the lines are parallel so the slopes will be equal

m = -3/7

Now

Point = (x,y) = (-5,-3)

So, x = -5, y = -3

Putting in slope intercept form to find b

y = mx+b

-3 = (-3/7)(-5) + b

-3 = 15/7 + b

7b = -21-15

7b = -36

b = -36/7

Now the slope intercept form for the line is

y = -3/7x-36/7

What is the second step when evaluating the expression 18 = (24 - 18) + 3-1?
18 = 6
O 24 - 18
-18 + 3
3-1

Answers

I believe you meant the equal signs to be division symbols haha. The next step would be 18/6.

Answer:

8/16

Step-by-step explanation:

Checking
Quick
Check
Use additive inverses and their properties to find the equivalent expressions.

Answers

Answer:

Equivalent expression:

a) -9

b) 3

c) 9

d) -3

Step-by-step explanation:

The Property of Additive Inverse states that the summation of a number and it's Additive inverse = 0

An Additive inverse of a positive integer is a negative integer and vice versa.

For example:

5 -5 = 0

The additive inverse of 5 = -5

For the question above, we are asked to use the additive inverses and their properties to find the equivalent expressions.

a) 6 -(-3)

Additive inverse = - 6 + (-3)

= -6 - 3 = - 9

b) -6 -3

Additive inverse = 6 +(-3)

= 6 - 3 = 3

c) 6 - 3

Additive inverse = 6 + 3

= 9

d) -6 - (-3)

Additive inverse = -6 + 3

= -3

Answer:

6 - (- 3)     arrow goes to 6 + 3

6 - 3         arrow goes to 6 +  (- 3)

- 6 - (- 3)  arrow goes to -6 + 3

- 6 - 3       arrow goes to - 6 + (- 3)

What is the opposite of the number -2.5? How does the position of -2.5 compare to its opposite on the number line?

Answers

Answer:

-2.5 and 2.5 compare to eachother on the number line because they are the exact same distance away from 0.

Step-by-step explanation:

0 is in the very middle and to get -2.5 you go to the left 2.5 paces but to get to +2.5 you go to the right 2.5 paces. Either way you have to move Exactly 2.5 paces either to the left or right depending on if you want a positive or negative.

Homework Help please!

Answers

Answer:

7x4

28

Step-by-step explanation:

Answer:

The correct answer is D. 28 miles

Step-by-step explanation:

Because 7 miles in 2 hrs so in 8 hrs it will be 28 miles.

Hope it helps you !!!!

Use the values in the table to verify the relationship
between the functions representing the investments.
Which conclusion can be made?
O The functions are inverses because the domain of Table
A is the same as the range of Table B.
The functions are inverses because the range of Table A
is different from the domain of Table B.
the functions are not inverses because for each
ordered pair (x, y) for one function, there is no
corresponding ordered pair (x, y) for the other function.
O The functions are not inverses because for each
ordered pair (x, y) for one function, there is no
corresponding ordered pair (y, x) for the other function.

Answers

Answer:

The functions are not inverses because for each  ordered pair (x, y) for one function, there is no  corresponding ordered pair (y, x) for the other function.  

Step-by-step explanation:

In the figure attached, the tables are shown.

For example, in table A the pair (1, 1051.21) is present, but the pair (1051.21, 1) is not present in Table B. Therefore, the functions are not inverses.

Answer:

The answer is D

Step-by-step explanation:

What is the y-intercept of this quadratic function?
fin = -x^2 + 10x- 22

Answers

Answer:

- 22

Step-by-step explanation:

To find the y- intercept let x = 0 , that is

y = 0² + 10(0) - 22 = 0 + 0 - 22 = - 22 ← y- intercept

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