Answer: The average age of the children at the library is 7.1 years.
Step-by-step explanation:
Given,
Out of 20 children, six of the children have an average age of 5 years,
Thus, the sum of the ages of 6 students = 5 × 6 = 30
( Total sum of observations = Their Average × Total numbers of the observations )
Now, remaining students = 20 - 6 = 14,
Since, the remaining children have an average age of 8 years.
Thus, the sum of the ages of 14 students = 14 × 8 = 112,
Total sum of the ages of 20 students = 30 + 112 = 142
=142/20
= 7.1 years
Answer:
The average is 7.1 years!
Step-by-step explanation:
6 children = average of 5 years
14 children = average of 8 years
According to the graph, where was Diego when he was going the slowest during the race?
Answer:
Excuse Me, I believe you forgot to put your picture in your question! I would highly recommend reposting your question for the desired answer(s) that your looking for!
Have a GREAT day!
Yours Truely, TheAnimeCatUwU
Answer:
https://brainly.com/question/22920148?answering=true&answeringSource=feedPublic%2FhomePage%2F1
Step-by-step explanation:
determine the point-slope form of the line with slope -7 that intersects the point (5,23)
Answer:
y=-7x+58
Step-by-step explanation:
4. Calculate the compound interest earned when $8 500 at 8% per year for:
a. 3 years
b. 8 months
Solve for x
A) 8
B) 10
C) -11
D) 5
PLEASE HELP! WILL GIVE BRAINLIEST! After substituting, what is the first step when evaluating 4y+9 when y=82 O Add 4 and 9. O Multiply 8 by 4. O Divide 9 by 7 O Divide 4 by 7.
Answer:
The answer is c
Step-by-step explanation:
Look at the system of equations below.
y = {x + 10
y = {x – 10
Which of these statements is correct?
A. The system has no solution.
B. The solution of the system is (-3,8).
C. The solution of the system is (6,-6).
D. The system has an infinite number of
tiang
Answer:
Step-by-step explanation:
A
I need help please pleaseeeeee
Answer:
19.64 ft
Step-by-step explanation:
7/25 = 5.5/x
7x = 137.5
x = 19.64
Describe several methods you could use to determine the rational zeros of a polynomial function. Which would you choose to use first? Explain.
Answer:
The Rational Zero Theorem helps us to narrow down the list of possible rational zeros for a polynomial function. Once we have done this, we can use synthetic division repeatedly to determine all of the zeros of a polynomial function.
Step-by-step explanation:
Answer:
The Rational Zero Theorem helps us to narrow down the list of possible rational zeros for a polynomial function. Once we have done this, we can use synthetic division repeatedly to determine all of the zeros of a polynomial function.
Step-by-step explanation:
I have no idea what this question means but if anyone understands it or has an answer much help is apreciated! :)
Here, we have to factorise :
- 12n - 20Consider the largest number which is the factor of both -12 and -20, that is -4.
→ -4 × 3n = -12n
→ -4 × 5 = -20
Taking (-4) as common,
→ -4( 3n + 5 )
Option B is correct. [tex] \checkmark [/tex]How many zeros are in the product 4 x 10 7th power
Answer:
7 or 40,000,000
Step-by-step explanation:
The exponent (^7) is how many zeros for the 10. if there is 10^2 its just 100 because it's 10 * 10 or 100 (notice the zeros in the 10 * 10 equation? yup, there's 2) and the 4 is basically 4 * 10, it changes the 10 like 4*1 but with a lot of zeros if there were exponents (10^2) so just put them together and you get 4 * 10^7
10^7 (its just 10 times itself 7 times) = 10,000,000
4 * 10,000,000 = 40,000,000
Hope this helps
~R3V0
Help if you can -
8 commercials in 15 minutes
Find Unit Rate
Plzz show work!
Also, dont add any type of links
Thanks!! :D
Answer:
1.875 commercials a minute
Step-by-step explanation:
The scatterplot shows the relationship between the percentage of battery life remaining in 12 smoke detectors and the number of months that the batteries have been in the smoke detectors.
Based on the scatterplot, what is the best prediction of the number of months it would take for the battery in a smoke detector to have 20 percent battery life remaining?
A-9 months
B-7 months
C-11 months
D-6 months
To get ready for school, Traci spent 1/20th
of an hour getting dressed and 1/10th of an
hour doing her hair. What is the total
amount of time she spent getting ready?
Give your answer in simplest form.
Answer:
3/5
Step-by-step explanation:
1/10+1/20=3/5
Please help, test due in 2 hours! Will give good review and brainliest. :)
Answer:
triangle and rectangle??
Step-by-step explanation:
24.. A toy company makes 40 plastic harmonicas in 30 minutes. At this
rate how long will it take to make 200 harmonicas?
Proportions
Answer:
It will take 2 and a half hours
Step-by-step explanation:
Well 40 can go into 200 5 times so you would do 5 times 30 minutes which would be 150 minutes and then you would divide it by 60 to simplify which would be 2 hours and 30 minutes. So it will take 2 and a half hours to make 200 harmonicas.
200/40 = 5
5 * 30 = 150
150/60 = 2 hours and 30 minutes
Answer:
6.7 minutes
Step-by-step explanation:
From what we know, we will have to divide. The things we are dividing are the 30 minutes it took to make the 40 plastic harmonicas and the total we need of harmonicas, which is 200. By dividing 200 by 30, we get 6.666666666666667. But, we can't have that long answer, so we need to round up. Which is when we get our quotient of 6.7 minutes. If I'm wrong, please, don't be afraid to correct me. And have a good day stranger!
Edit: This answer is wrong. I was corrected and now I know what the answer is. Please do avoid this answer. But have a good day to anyone sees this!
Maria's earns $1700 per month and gets a commission rate of 15% of the jewelry she sells. If she sold $23000 worth of jewelry this month, what is her montly earnings?
Answer:
$5150
Step-by-step explanation:
1700+0.15(23000)
$5150
2
Sierra's ice cream shop made $45 before she had to close early when the power went out. She realized she lost ſ of
a dollar each hour when the shop was closed. The expression that models this situation is 45 - an what was Sierra's
profit if the shop was closed for 6 hours?
$24
O $36
O $41
$49
Answer:
if shes losing 2/3 each hour, the her profit would be 41.
Step-by-step explanation:
2/3 x 6 is 4, 45 - 4 is 41.
A commission is a fee paid to a salesperson based
on a percent of sales. Suppose a salesperson at a
jewelry store earns a 6% commission. What
commission would be earned for selling a ring
that cost $1300 dollars?
Answer:78
Step-by-step explanation:
1300x0.06=78
The commission by the salesman on the jewelry is $78.
What is commission?A sales commission is a sum of money paid to an employee upon completion of a task, usually selling a certain amount of goods or services.
Given that, a salesperson at a jewelry store earns a 6% commission. The worth of the jewelry is $1300
The commission on the jewelry =
6% of $1300
= 1300 × 6 / 100
= 13 × 6
= 78
Hence, he earned $78 as commission.
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Determine the measure of the missing angle in the figure below.
DRAG & DROP THE ANSWER
90
45
75
Missing angle:
Answer:
Step-by-step explanation:
Find the volume.
PLEASE HELP I WILL GIVE BRAINLIEST TO THE RIGHT ANSWER
A positive angle less than 360 that is coterminal with -725 degrees is
The positive angle is less than 360 which is coterminal with -725 degrees is 85 degrees.
What are Coterminal Angles?Coterminal angles are those with the same beginning side and the same terminal sides. These angles are in the typical position, although their values differ. They have the same sides, are in the same quadrant, and their vertices are identical. The endpoint sides coincide at the same angle when the angles are rotated clockwise or anticlockwise.
An angle that is coterminal with -725 degrees is an angle that has the same initial and terminal sides as -725 degrees, but its measure is between 0 and 360 degrees.
To determine a positive angle less than 360 that is coterminal with -725 degrees, we can add or subtract multiples of 360 from -725 degrees until we get an angle within that range.
In this case, -725 degrees - (2 x 360) = -725-720= -1445.
So, the positive angle less than 360 that is coterminal with -725 degrees is -1445 degrees + 360 = 85 degrees.
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You buy a laptop that
originally cost $660.
It was on sale for 20%
off. You paid 8% tax
on the sale price.
What was the total amount that you paid?
Answer:
$528.00
Step-by-step explanation:
I hope this helps :)
PLS HELP WILL CHOOSE BRAINLY NO SENDING LINKS! Which conditions will result in the construction of a unique triangle? Select TWO answer choices.
Answer:
not sure about second, but one is the 30, 60, 90 angle triangle. That one i'm 100 percent sure of (30, 60, 90).
Step-by-step explanation:
What is the surface area of a right circular cylindrical oil can, if the radius of its base is 4 inches and its height is 11 inches? for 25 points
Step-by-step explanation:
Given
Radius (r) = 4 inches
height (h) = 11 inches
Total surface area of cylindrical oil can is
= 2πr ( r + h)
= 2 * 22 / 7 * 4 ( 4 + 11)
= 2 * 22/7 * 4 * 15
= 377.14 inches ²
If the radius of a right circular cylindrical oil can base is 4 inches and its height is 11 inches, then the surface area of that right circular cylindrical oil can is 376.99 square inches.
What is the surface area of a right circular cylindrical figure?Let b and h be the radius of the base and height of a right circular cylindrical figure respectively. Then the surface area of this right circular cylindrical figure is 2πb(b + h).
How to solve this problem?Given that the radius of the base of the can is 4 inches.
The height of the can is 11 inches.
Then the surface area of the can = 2π * 4(4 + 11) = 8π(15) = 120π = 376.99 square inches
Therefore, If the radius of a right circular cylindrical oil can base is 4 inches and its height is 11 inches, then the surface area of that right circular cylindrical oil can is 376.99 square inches.
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A dot plot displays data ______
using a small dot for each data piece.
A : Vertically
B: Graphically
C: Proportionally
Jazzmine took out a loan of $17,500 to buy a new car. She received a 3.5% interest rate compounded annually and paid $3,274.50 in interest. How long did it take Jazzmine to pay off the loan?
Answer:
Time period = 5 year (Approx.)
Step-by-step explanation:
Given:
Amount of loan = $17,500
Rate of interest = 3.5% compounded annually
Amount paid as interest = $3,247.5
Find:
Time period
Computation:
Using compounded interest formula
I = P[(1+r)ⁿ - 1]
3,247.50 = 17,500[(1+3.5%)ⁿ - 1]
3,247.50 = 17,500[(1+0.035)ⁿ - 1]
3,247.50 = 17,500[(1.035)ⁿ - 1]
Time period = 4.948
Time period = 5 year (Approx.)
What is the approximate average rate of change of the function f(x) = -20(1.3)x^
over the interval 1.2 _< x _< 2.7?
Answer:
c
Step-by-step explanation:
o study student engagement, a university surveys 1,390 college freshman and determines that 470 of them participate in a recreational sport. The university would like to estimate the proportion of all college freshman that participate in a recreational sport at a 95% confidence interval. What is the upper bound of the confidence interval built by the university
Answer:
46
Step-by-step explanation:
PLEASE I NEED THIS NOW, AND EXPLICATION
Answer:49.5
Step-by-step explanation:so if 1 inch equal to 3 yards then 7.5 will be 21.5 and 6 inchs will be 18 so if you all together you will get 49.5
Answer:
36
Step-by-step explanation The answer would be 36 because A=a2=62=36 and the math added to 36 hope this helped.
Heeeeeelp! I’m literally so behind
Answer:
That would be 9 my good sir ( or ma'am )
Step-by-step explanation:
basicly round the 61 so that there would not be a remainder and divide 54 by 6 you will get 9, so therefore the same case is for 540 by 60.
Have a nice day
