calculate the mean of the set of boys and girls below:
boys 21, 18, 20, 16, 16, 22, 28, 24, 26
girls 13, 16, 15, 14, 15, 19, 22, 26, 12
A-boys: 21.22 girls: 16.89
b-boys, 21 girls, 15
c-boys 18.5 girls 17
d-boys 18.5 girls 15
Answers
Answer:
Boys: 21.22 Girls: 16.89
Answer: A
Step-by-step explanation:
Add all the data points and divide it by the number of the data points.
Related Questions
The sum of 6 and x
x + 4
6/x
X+ 6
6x
Answers
Answer:
x + 6
Step-by-step explanation:
Sum means to add the 2 terms , so
x + 6 ← represents the sum of 6 and x
Given the exponential equation 2X = 8, what is the logarithmic form of the equation in base 10? (5 points)
Answers
Answer:
x =
[tex] \frac{ log_{10}(8) }{log_{10}(2) } [/tex]
The selling price of a refrigerator, is $638.00. If the markup is 10% of the dealer's cost, what is the dealer's cost of the refrigerator?
Answers
25% markup = original + 25% = 125% of original = 1.25 x original
Selling price = 1.25 x dealer price
Answer = 521.25/1.25=$417
The dealers price would be 100% they sell it for 10% more so it is sold at 110 % of what the dealer pays.
Divide the selling price by 110% to get the dealers cost.
638 / 110% = 638 / 1.1 = 580
The dealers cost is $580
What is the measure of ZA?
Select the best answer from the choices provided.
A. 35
B. 55°
С.70°
D.110°
Answers
Answer:
55°
Step-by-step explanation:
Since two of the sides are the same length, that means ∠A and ∠B are the same.
All angles of a triangle add up to 180°
180 - 70 = 110
To find ∠A, we just divide 110 by 2
110 ÷ 2 = 55
Both ∠A and ∠B are 55°
B. 55°
Step-by-step explanation:
The triangle shown is a isosceles triangle meaning two angles measure the same value and one angle measures different from the others
To find m∠A, subtract 180 since it’s the total ° among the angle minus 70° to be left with the two angles
180° - 70° = 110°
The two angles can’t each be measured 110° so we must divide 110° by 2 for the two angles to have the same degree
Thus, m∠A = m∠B and m∠A = 55°
what is 1000,0000t -100x=
Answers
Answer:
100(10t-x)
Step-by-step explanation:
factor 100 out from the expression
What’s the answer? ANSWER THIS NOW PLEASE
Answers
Answer:
v=4
Step-by-step explanation:
-23=3v+9-11v
-23=9-8v
-32=-8v
v=4
Answer:
v=4
Step-by-step explanation:
-23=-8v+9
-23-9=-8v
-32=-8v
-32/-8=v two negatives make a positive
4=v
help?????????????????
Answers
Answer:
[tex] 1)-\sqrt{2.25} = - \sqrt{225 \times {10}^{ - 2} } \\ = -\sqrt{225} \times \sqrt{ {10}^{ - 2} } \\ =- 15 \times {10}^{ - 1} =- 1.5 = -\frac{3}{2} \\ 2) -\frac{3}{2} = -1.5 \\ thank \: you[/tex]
Evaluate –3² + (2 – 6)(10).
Answers
Answer:
-49
Step-by-step explanation:
Which one describes the algebraic expression for the phrase, "the sum of a number and its square"?
n + n2
n + 2
2n
n + 2n
Answers
the sum of the number and its square is basically saying add one number to itself swuare rooted. number represented as 'n', is shown twice in the equation because its being added to itself. then throw the square on to it and get the first one as your answer.
please give me brainliest im so close to the bext rank
How do I write thirty two million ten thousand one in numbers
Answers
Answer:
32,010,001
Step-by-step explanation:
Solve: VII multiplied by IX. Show your answer in standard form. Standard Number 1 Roman Numeral 5 V 10 50 100 500 1,000 X-003 A) 36 B) 63 C) 77
Answers
63
Step-by-step explanation:
i gotchu keep these coming
What is the length of CA?
Select the best answer from the choices provided.
A4.5
B. 4.5v2
C.9
D.9v2
Answers
Samuel invested money in his bank account. He had a principal, P, of $100 in his account at the beginning of the period, which increased at a rate, r, of 0.15 per year. At the end of the period, he had interest, I, of $105 in his account. Use the simple interest formula I = Prt, to solve for the time, t, in months that it took to earn this amount.
Answers
Hey there! I'm happy to help!
Let's see what we have for each variable.
I = 105
P = 100
r = 0.15
Now, let's plug it in and solve for our t (time)
105=100(0.15)(t)
Swap sides so t is on the left.
100(0.15)(t)=105
Divide both sides by 100.
0.15t=1.05
Divide both sides by 0.15
t=700
So, we see that it takes 700 months to earn this amount.
Have a wonderful day and keep on learning! :D
The number of months that it took to earn this amount will be 84 months.
What is simple interest?Simple interest is the concept that is used in many companies such as banking, finance, automobile, and so on.
I = (PRT)/100
Where P is the principal, R is the rate of interest in percentage, and T is the time.
Samuel invested money in his bank account.
He had a principal, P, of $100 in his account at the beginning of the period, which increased at a rate, R, of 0.15 per year.
At the end of the period, he had interest, I, of $105 in his account.
105 = 100 x 0.15 x t
t = 1.05 / 0.15
t = 7 years
The number of months that it took to earn this amount will be
⇒ 7 x 12
⇒ 84 months
The number of months that it took to earn this amount will be 84 months.
More about the simple interest link is given below.
https://brainly.com/question/2793278
#SPJ2
9 + x + 1 + 2x
Can someone help me out with this :)
Answers
3x + 10
Step-by-step explanation:
9 + x + 1 + 2x
Combine like terms
2x + x = 3x
Combine like terms
9 + 1 = 10
We’re left with 3x + 10
[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\text{9 + x + 1 + 2x}[/tex]
[tex]\huge\text{= 9 + 1x + 1 + 2x}[/tex]
[tex]\huge\textsf{COMBINE the LIKE TERMS}[/tex]
[tex]\huge\text{= (9 + 1) + (1x + 2x)}[/tex]
[tex]\huge\text{= 10 + 3x or 3x + 10}[/tex]
[tex]\huge\text{Answer: \textsf{3x + 10}}[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
HELP!! WILL MARK AS BRAINLIEST!!!
On an airplane, the passengers may have chicken, vegetable or tomato soup
Half of the passengers choose chicken soup
A third of the passengers choose tomato soup.
(a) What fraction of the passengers choose vegetable soup?
There are 240 passengers on the airplane.
(b) How many passengers choose vegetable soup?
Answers
Answer:
1/6 and 40
Step-by-step explanation:
for 1/6 you can get the answer by getting 1/2 chicken = 3/6 then 1/3 tomato soup = 2/6 and you have 1/6 left which will be the answer.
For the number of people, 1/6 is equal to 40 because 240 divided by 6 equals 40
Help me pleaseee!!
Would appreciate ^^
**BRAINLIST, thanks and points***
Answers
Answer:
4900
Step-by-step explanation:
because it is square root of 70 and it means
sol?
square of 70 =70²=70×70=4900
Answer:
22. 30
prime factorization of 30
2 × 3 × 5
so there is no simplification needed here
23. 126
2 × 3 × 3 × 7
simplification
2 × [tex]3^{2}[/tex] × 7
24. 4900
2 ×2 × 5 × 5 × 7 ×7
simplification
[tex]2^{2}[/tex] × [tex]5^{2}[/tex] × [tex]7^{2}[/tex]
25. 39204
2 × 2 × 3 × 3 × 3 × 3 × 11 × 11
simplification
[tex]2^{2}[/tex] × [tex]3^{4}[/tex] × [tex]11^{2}[/tex]
26 .
Yes 4900 is a square number it's square root is 70
you can even cross-check
70 × 70
= 4900
and even 39204 is a square number it's square root is 198
you can even cross-check
198 × 198
= 39204
Hence 2 numbers 4900 and 39204 are square numbers
27 .
i. highest common factor of 30 and 126
factors of 30 are 2 × 3 × 5
factors of 126 are 2 × 3 × 3 × 7
now find common between them
common factors are 2 and 3
so multiply 2 and 3
2 × 3
= 6
6 is the highest common factor
ii. 126 and 39204
factors of 126 are 2 × 3 × 3 × 7
factors of 39204 are 2 × 2 × 3 × 3 × 3 × 3 × 11 × 11
now find common between them
common factors are 2 × 3 × 3
= 18
18 is the highest common factor
28 .
1 . 126 and 4900
factors of 126 are 2 × 3 × 3 × 7
factors of 4900 are 2 ×2 × 5 × 5 × 7 ×7
make the pairs of the numbers
2 ×2 × 5 × 5 × 3 × 3 × 7 ×7
= 44100 least common multiple
ii. 4900 and 39204
factors of 39204 are 2 × 2 × 3 × 3 × 3 × 3 × 11 × 11
factors of 4900 are 2 ×2 × 5 × 5 × 7 ×7
make the pairs of the numbers
2 ×2 × 3 x 3 x 3 x 3 x 5 x 5 x 7 x 7 x 11 x 11
= 48024900 least common multiple
You buy 8 books for $44. Paperbacks are $4 and hardbacks are $8. How many of each type can you buy?
Answers
h = number of hardback books
p = number of paperback books
h + p = 8
so
h = 8-p
.
4*p = price of paperbacks
8*h = price of hardbacks
4*p + 8*h = 44
.
substitute h = 8-p
.
4p + 8(8-p) = 44
4p +64 -8p = 44
-4p = -20
p = 5
h = 8-p
h = 3
.
check to be sure the values are right
4*5 = 20
3*8 = 24
20 +24 = 44
55 is the sum of 24 and Delia's age.
Use the variable d to represent Delia's age.
Answers
Answer:
d + 24 = 55
Step-by-step explanation:
hope this helps have a great day
If R is the midpoint of QS, find QS. (2x + 16) and (5x - 17) Brainliest to correct answers. Please no spamming or random answers this is due tmrw thx.
Answers
Answer:
QS = 76
Step-by-step explanation:
Given R is the midpoint of QS , then
RS = QR , that is
5x - 17 = 2x + 16 ( subtract 2x from both sides )
3x - 17 = 16 ( add 17 to both sides )
3x = 33 ( divide both sides by 3 )
x = 11
Then
QS = QR + RS
= 2x + 16 + 5x - 17
= 7x - 1
= 7(11) - 1
= 77 - 1
= 76
Find the 13th term of the geometric sequence 4,-8,16
Answers
Answer:
4, -8, 16
scale factor = x-2
4, -8, 16, -32, 64, -128, 256, -512, 1024, -2048, 4096, -8192, 16384
answer = 16,384
Which number is a rational number that is NOT a whole number?
F.) 2
G.) 12
H.) 30/10
J.) 17/5
Answers
Answer:
J (17/5)
Step-by-step explanation:
Whole numbers cannot contain decimal values so 17/5 is not a whole number.
1. Dividing thirty by one more than an integer is the same as dividing twenty-four by one less
than the integer. Find the integer algebraically using rational expressions.
Answers
Answer:
9
Step-by-step explanation:
Let the integer be n
According to the text
30 / (n + 1) = 24 / (n-1)
Cross multiply we have
30 (n -1) = 24 (n + 1)
30 n - 30 = 24 n +24
30n -24n = 30 + 24
6n = 54
n = 9.
So the integer is 9.
Please help me with this-
Answers
please help fast please
Answers
Answer:
6.6
Step-by-step explanation:
The average length of time that three computers operate on a given day is 960 minutes. None of the computers operate for less than 930 minutes. What is the greatest possible length of time any one of the computers operates
Answers
The greatest possible length of time will be "1020 min".
Given:
The average length of time,
= 960
For all 3 computers,
The minimum length of time,
= 930
Let,
The length of time of 2 computers will be "930".The 3rd one be "930+x".Now,
→ [tex]\frac{930+930+930+x}{3} = 960[/tex]
→ [tex]\frac{930+930+930}{3} +\frac{x}{3} =960[/tex]
→ [tex]\frac{3\times 930}{3} +\frac{x}{3} =960[/tex]
→ [tex]930+\frac{x}{3}=960[/tex]
→ [tex]\frac{x}{3} = 960-930[/tex]
→ [tex]x = 30\times 3[/tex]
→ [tex]x = 90[/tex]
hence,
The greatest possible length of time will be:
= [tex]930+x[/tex]
= [tex]930+90[/tex]
= [tex]1020 \ min[/tex]
Thus the above is the appropriate answer.
Learn more:
https://brainly.com/question/7994890
Five dollars less than two times Chris pay is at most 124
Answers
Answer:
2p - 5 ≤ 124.
Step-by-step explanation:
If Chis's pay is p then it is:
2p - 5 ≤ 124.
2x+1<9
Compound inequality
Answers
Answer:
x < 4
Step-by-step explanation:
2x+1<9
Subtract 1 from each side
2x+1-1<9-1
2x< 8
Divide by 2
2x/2 <8/2
x < 4
Given g(x)=-x+2g(x)=−x+2, find g(5)g(5).
Answers
Answer:
g(5) = -3
Step-by-step explanation:
Hi there!
[tex]g(x)=-x+2[/tex]
To find g(5), replace x with 5:
[tex]g(5)=-5+2\\g(5)=-3[/tex]
I hope this helps!
Answer:
g(5) = -3
Step-by-step explanation:
given:
[tex]g(x) = -x + 2[/tex]
find:
[tex]g(5)[/tex]
replace the x with 5
~~~~~~~~~~~~
➡️ [tex] g(5) = -5 + 2[/tex]
➡️ [tex] g(5) = -3 [/tex]
The velocity, V, of a specific object being dropped from a particular height, h, can be found by the radical function V equals the square root of the quantity 2 times h times a end quantity where a represents the acceleration in ft/sec2. If the acceleration due to gravity is 32.2 ft/sec2, at what height should you drop an object in order for it to have a velocity of 70 ft/sec?
Answers
Answer:
20.3 ft/sec
Step-by-step explanation:
Answer:
76.1
Step-by-step explanation:
I don’t know I forgot to show my work but I got it right lol
please help me with this and explain your answer
Answers
Answer:
B
Step-by-step explanation:
t=4x+c
Since we are looking for x,
t-c=4x
Divide through by the coefficient of x which is 4
4x/4=t-c/4
Therefore, x=t-c/4