Answer:
23
Step-by-step explanation:
Women total age = 5 x 23 = 115
Men total age = 3 x 24 = 72
The mean age of all the people
= (115+72)÷(8)
= 23.375
= 23 (nearest year)
The mean age (nearest year) of all the people in the office is 23
How to determine the mean age?The given parameters are:
5 women = 23 years
3 men = 24 years
Mean is calculated using:
[tex]\bar x = \frac{\sum fx}{\sum f}[/tex]
So, we have:
[tex]\bar x = \frac{23 * 5 + 24 * 3}{5 + 3}[/tex]
Evaluate the quotient
[tex]\bar x = 23[/tex]
Hence, the mean age (nearest year) of all the people in the office is 23
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(find the value of x from the given
figures.)
F
a)
120
3
solo
Answer:
sorry,
can u repost yr question with figure plz
stay safe healthy and happy.Help please (: :). .
Answer:37.68
Brainliest pls
Answer:
The circumference of the circle is 75.36cm
Step-by-step explanation:
There are two ways you can solve this, one is by using the radius and multiplying it by 2 and then pi which is 3.14, and the other is to use the diameter which is the radius times 2, and the thingy gave you the diameter, and you multiply it by 3.14 which is pi
Sonia rolls a six-sided number cube 12 times and records if she rolls a 2. What is the number of trail for this binomial experiment
Sonia rolls it 12 times, so there's 12 trials.
Step-by-step explanation:
hope this helps ya :)
Answer: just go w C i dunno
Step-by-step explanation:
5. A ladder leans against a building. The top of the ladder touches the building 10 feet above the ground. The foot of the
ladder is 4 feet from the building. Find, to the nearest degree, the angle that the ladder makes with the level ground.
(3 points)
Answer:
68 degrees
Step-by-step explanation:
The ladder, the building and the ground together make up a right triangle with angle of elevation to be determined.
The side opposite this angle is 10 ft; the distance of the foot of the ladder from the building is 4 ft. Thus,
tan x = (opp side) / (adj side) = 10/4. Using the inverse tangent function, we find that the angle in question is
arctan (10/4) = 68 degrees
please help i’ll give brainliest to the person who gets it right
Answer:
Angle J=180-(90+58)
=180-148
j =32
angle h=90(because the angle of a semicircle is 90)
Can you help me please everyone is ignoring my questions
also explain how you got that answer too
Name Age
Alex 8
A.j 6
Chelsea 9
Derek 15
Maddie 12
Paul 8
Ryan 19
Willa 11
What is the median age of Emma's cousins?
Find the length of x. Assume that lines which appear to be tangent to the circle are tangent.
A) 32
B) 35
C)38
D)42
$3 subtracted from the cost of the book
Answer:
x = 11 explanation : " $3 subtracted from the cost of the book just number 8! " As an equation this would be : x - 3 = 8 SOLVE x - 3 = 8 + 3 + 3 x = 11 KEY x = cost of book
hope it helps
My brain operates on one brain cell I need help
Find the value of x and y
Answer:
2x + 20 = 3x-10
2x -3x = -20-10
-x = -30
x= 30
Checking part:
2x+20 = 2(30) +20 = 60+20 = 80
3x-10 = 3(30) - 10 = 90-10 = 80
Hence, the final answer is x = 30.
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
the angle should be the same so,
2x+20=3x-10
x=30
what do you mean find y? I can't see it
Find the distance d. Round your answer to the nearest tenth. Show all your work. Thanksss!
Answer: the distance for d is about 5.8 units
Step-by-step explanation:
Use the pythagorean theorem. a^2 + b^2+= c^2 . in this case, c^2 is the distance for d.
5^2 + 3^2= d^2
25+9= d^2
34= d^2
square both sides and d is approximately 5.818
someone help please :(
Answer:
47 I believe
Step-by-step explanation:
If the measurement of angle 2 is 120 degrees, what is the measurement of angle 7?
Answer:
The measure of angle 7 is twice the measure of angle 2, then the measure of angle 7 is
angles 2 and 7 equal 180 degrees. 180 = 2x + x
180 = 3x
x = 60
angle 7 is twice x
angle 7 = 120
Step-by-step explanation:
What is the simplified form of the following expression?
25xy sqrt 81/625x²y^2
Answer:
c
Step-by-step explanation:
edge 20220020
Answer:
D
Step-by-step explanation:
treust mememe
A student has taken three math tests so far this semester. His scores for the first three tests were 71, 75, and 79. Part A: Suppose his test scores continue to improve at the same rate. What will be the grade on the sixth and (final) test?
Answer:
The grade of this sixth and (final) test would be 91.
Step-by-step explanation:
This is an arithmetic series since each time the data is increasing by the common difference of 4, and we already know a₁ which is the first term in the sequence is 71, therefore we can say:
a₁ = 71
r = 4
a₆ = the sixth term that needs to be found out
n = 6
Formula of an arithemetic series:
aₙ = a₁ + r(n - 1)
a₆ = 71 + 4(6 - 1)
a₆ = 71 + 4(5)
a₆ = 71 + 20
a₆ = 91
Hence, the grade of this sixth and (final) test would be 91.
Hope this helps!
What percent of the data is less than 10 texts?
Group of answer choices
25%
50%
75%
100%
HELP ME PLS!!!!
Which statement correctly compares the values in the statement?
|-0.073| □ |0.73|
O 0.073 < 0.73
O 0.073 < -0.73
O 0.073 > 0.73
O 0.073 = 0.73
Answer:
the first option : 0.073< 0.73
Step-by-step explanation:
the first option : 0.073< 0.73
Answer:
O 0.073 < 0.73
Step-by-step explanation:
Definition of greater then and less thenThe greater than and less than symbols indicate a difference between two values. The symbol for greater than is " > ", and the symbol for less than is " <",
The value, O 0.073 is lesser then 0.73
hence,0.73 is the correct option
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The high temperatures for the week were 87, 82, 100, 83, and 88. What is the mean of the temperatures without the outlier
In the triangle below, what is the length of EF
A. 6
B. 24
C. 12
D. 25
Answer:
12
Step-by-step explanation:
since DE and EF are congruent then we now know that EF is also 12
Chloe had 2 bags of dry cat food, she combined them into one big container. One bag had56kg of cat food. The other bag had 34kg of cat food. How many kilograms does the container weigh now that the bags have been combined?
Answer: 90kg of cat food
Step-by-step explanation: 56+34=90
Answer:
90kg
Step-by-step explanation:
56 plus 34 is 90
he dot plot below shows how many days this week students in 6th grade had a Poptart for breakfast.
Which statement about the data is true?
A.
The range is 8.
B.
The mode is 3.
C.
There is a gap from 5 to 7.
D.
The median is 2.
Answer:
letter c
im not sure and i hope this is helpful
Tom can do a job in 210 minutes; Tom and Jerry can do the job together in 52 minutes. How long for Jerry to do the job by himself?
Answer:
158
Step-by-step explanation:
you only need to do is subtract
Jerry can do the job in approx 17 minutes working alone.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, Tom can do a job in 210 minutes and assuming Jerry to do the job
in x minutes and work to be 1.
∴ 1/210 + 1/x = 1/52.
1/x = 1/52 - 1/210.
1/x = (210 - 52)/2730.
1/x = 158/2730.
1/x = 79/1365.
x = 1375/79.
x = 17 minutes approx.
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please help me complete these -5a^2+ 5a = _______(a – 1) and 18x^2 + 2x³ = _______(9 + x) I need to complete the blanks
Answer:
Step-by-step explanation:
-5a^2+ 5a factors as follows: -5(a - 1) (so -5 goes into the blank space).
18x^2 + 2x³ factors as follows: 2x^2(x + 9) (so 2x^2 goes into the blank space)
What is the image of the point (2,-3) after a rotation of 90 ∘ counterclockwise about the origin?
Answer:
(2,-3) changes to (3,2)
A is correct.
Step-by-step explanation:
Given: The point (2, −3) after a counterclockwise rotation of 90° about the origin.
Rotation is counterclockwise about origin.
We are given coordinate
We can see in diagram also. Please see the attachment for rotation.
Hence, (2,-3) changes to (3,2
I need help with this!!
Ann and ben had some apples. The ratio of the number of Ann's apples to the ratio of Ben's apple is 2:3. Ann gave 6 apples to ben and now the ratio becomes 1:3. How many apples are all together?
Answer:
There are 12 apples in total.
Step-by-step explanation:
If Anne gave Ben 6 apples then heres how:
2:3 subrtact 6 apples = 1:3
6 apples x 2 = 12 apples =
2 ÷ 2 = 1
Hence, your answer is double 6 which is 12 apples.
Hope this helps :)
AB= please answer :)
Answer:
8.77 or 8.80
Step-by-step explanation:
sin (20) = 3/x
x (sin)20)) = 3
divide by sin(20)
x= 8.77 or 8.8
write an equation in slope-intercept form for a line that passes through the given point and that is perpendicular to the given line.
x= -7; (0.2)
would y= -1/2x -7 work? or no, because -7 is the slope for the one given above?
Answer:
Step-by-step explanation:
x= -7; (0.2)
x = 1.4
----------------
y =− 2 x −7
I really hope this helps
what is the result when the number 38 is decreased by 4%
Answer:
1.52
Step-by-step explanation:
38 decreased by 4% = 36.48
Absolute change (actual difference):
36.48 - 38 = - 1.52