Answer:
156 children145 adultsStep-by-step explanation:
Let number of adults be a and children be c
Then we have equations
a + c = 3014a + 1.5c = 814From the first equation we get a = 301 - c, we substitute a in the second equation:
4(301 -c) + 1.5c = 8141204 - 4c + 1.5c = 8142.5c = 1204 - 8142.5c = 390c = 390/2.5c = 156Then finding the value of a:
a = 301 - 156 = 14512 batteries cost $25 = ? dollars per battery
$2
$2.08
$2.50
$12.25
Answer:
$2.08 per battery
Step-by-step explanation:
A paint company claims their paint will be completely dry within 45 minutes after application. Recently, customers have complained drying times are longer than the claimed 45 minutes. A consumer advocate group takes a random sample of 25 paint specimens and records their drying times. The average drying time x is 52. Consider dryng time, for all test specimens, to be normally distributed with ? = 6.
Suppose the claimed drying time is true, that is ? = 45 minutes, what is the probability of observing a sample mean of x = 52 or greater from a sample size of 25? (Round your answer to four decimal places.)
Answer:
The probability of observing a sample mean of x = 52 or greater from a sample size of 25 is 0.0000026
Step-by-step explanation:
Mean = [tex]\mu = 45[/tex]
Population standard deviation =[tex]\sigma = 6[/tex]
Sample size = n =25
Sample mean = [tex]\bar{x} = 52[/tex]
We are supposed to find the probability of observing a sample mean of x = 52 or greater from a sample size of 25 i.e.[tex]P(x\geq 52)[/tex]
[tex]Z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}\\Z=\frac{52-45}{\frac{6}{\sqrt{25}}}[/tex]
Z=5.83
P(Z<52)=0.9999974
[tex]P(Z\geq 52)=1-P(z<52)=1-0.9999974=0.0000026[/tex]
Hence the probability of observing a sample mean of x = 52 or greater from a sample size of 25 is 0.0000026
Answer:
the probability of observing a sample mean of x = 52 or greater from a sample size of 25 is 0.0000026
Step-by-step explanation:
Find the range for the measure of the third side of a triangle given the measures of the other two sides are 4 and 8.
Answer:
12
Step-by-step explanation:
Factor the perfect-square trinomial in y = (x2 + 2x + 1) − 1− 1.
y = (x +
2
)2 − 1 −1
Answer:
is one
Step-by-step explanation:
did it on test so pog got it right
Answer:
2 for simplify part
Step-by-step explanation:
on edge
Brandi spent 25 mins, which is 5/8 of her class period taking notes. How long was the class period?
Answer:
The class period was 45 minutes long
Step-by-step explanation:
as you can see 5/8 of the class is 25 minutes, meaning that 1 = 5 if we multiply 8 times 5, it gives 45.
Answer: I believe your answer is 40 minutes for Brandi's class period.
Step-by-step explanation: For every 5 minutes she spends in class, it is 1/8 of her total period of class time. For example, she spent 25 minutes and has 15 minutes or 3/8 left of class.
Ray is buying some ginger roots to brew some fresh ginger ale. The price of the ginger roots is GGG, and Ray has a coupon for 10\%10%10, percent off. The expression 0.99, G represents the price Ray pays for the ginger roots after using the coupon. What does 0.90, 9 represent in this context?
Answer:
0.9 in the context represent the price of the ginger
It is called decreasing factor for the function because it decreases the price of the ginger
Step-by-step explanation:
Original price of fresh ginger ale = G
Coupon = 10% off
The actual price paid = 100% - 10% of G
= 90% of G
= 90/100 × G
= 0.9 × G
= 0.9G
0.9 in the context represent the price of the ginger
It is called decreasing factor for the function because it decreases the price of the ginger
Answer:
The percent, as a decimal, of the original price that Ray paysStep-by-step explanation:
thats straight from khan academy
What is the volume of a rectangular prism with a length of 4.7 feet, a width of 1.5 feet, and a height of 1.6 feet? 7.1 ft³ 7.8 ft³ 8.65 ft³ 11.28 ft³
Answer:
its 11.28
Step-by-step explanation:
i took the quiz
Answer: Your answer is 11.28ft³
Step-by-step explanation: 4.7 x 1.5 x 1.6 = 11.28 also I did the k12 quiz here's proof.
Hope it helped :D
Find the midpoint of the segment with the following endpoints.
(-10, 2) and (-5, -1)
Answer:
(4, 5)
Step-by-step explanation:
i need help ASAP Please!!!
Jesse planned to drive a distance of 732 miles in 4 days. What is the average distance he planned to drive each day?
Answer:
183 miles
Step-by-step explanation:
To find the average, divide 732 by 4 to get 183.
5(x-3)=4(x-2) solve for answer
what is the sum of 1/2 + 1/4?
A. 2/8
B. 2/6
C. 4/8
D. 6/8
3/4 is the total.
See attached image for explanation.
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The soccer team's shirts have arrived in a big box, and people just start grabbing them, looking for the right size. The box contains 6 medium, 10 large, and 10 extra-large shirts. A player wants a medium for himself and one for his sister. Find the probability of each event described. Complete parts a through d below.
a) Probability of getting a medium shirt for the player ≈ 0.0385
b) Probability of getting a medium shirt for the player's sister ≈ 0.0385
c) Probability of getting a medium shirt for both the player and his sister ≈ 0.00148225
d) Probability of getting either a medium, large, or extra-large shirt ≈ 0.0385.
Here, we have,
To find the probability of each event, we first need to determine the total number of shirts in the box and the number of shirts that satisfy each event.
a) Probability of getting a medium shirt for the player:
Total number of medium shirts = 6
Number of medium shirts needed for the player = 1
Probability = (Number of medium shirts needed) / (Total number of shirts) = 1 / (6 + 10 + 10) = 1 / 26 ≈ 0.0385
b) Probability of getting a medium shirt for the player's sister:
Total number of medium shirts = 6
Number of medium shirts needed for the player's sister = 1
Probability = (Number of medium shirts needed) / (Total number of shirts) = 1 / (6 + 10 + 10) = 1 / 26 ≈ 0.0385
c) Probability of getting a medium shirt for both the player and his sister:
Since the two events are independent (one person getting a medium shirt does not affect the other's chance of getting a medium shirt), we can multiply the probabilities of each event:
Probability = Probability of player getting a medium shirt * Probability of player's sister getting a medium shirt ≈ 0.0385 * 0.0385 ≈ 0.00148225
d) Probability of getting either a medium, large, or extra-large shirt:
Total number of medium, large, and extra-large shirts = 6 + 10 + 10 = 26
Number of shirts needed = 1 (for the player or his sister)
Probability = (Number of shirts needed) / (Total number of shirts) = 1 / 26 ≈ 0.0385
To summarize:
a) Probability of getting a medium shirt for the player ≈ 0.0385
b) Probability of getting a medium shirt for the player's sister ≈ 0.0385
c) Probability of getting a medium shirt for both the player and his sister ≈ 0.00148225
d) Probability of getting either a medium, large, or extra-large shirt ≈ 0.0385.
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Solve 3x+ 3 = 8 (5x + 5) for x
Answer:
Step-by-step explanation:
The chosen topic is not meant for use with this type of problem. Try the examples below.
5
3
y
+
5
2
=
5
x
3
=
2
x
−
1
=
2
y
Answer: x=-1
Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
3*x+3-(8*(5*x+5))=0
Pull out like factors :
5x + 5 = 5 • (x + 1) 3x + 3) - 40 • (x + 1) = 0
-37 = 0 but nozero's can't be converted so
Solve : x+1 = 0
Subtract 1 from both sides of the equation :
x = -1
What is the value of the expression below? (9-3)+4(6-7) O-7 O-1 O7 20
Answer:20
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
What is the answer to this I don’t know it
Answer:
there is no specific answer
Step-by-step explanation:
are we told to solve for n , simplify or factories
Connor is playing a card game called At Face Value. At the end of each round, players earn positive points for their remaining number cards but negative points for their face cards. At the end of round 1, Connor earns
–5 points. At the end of round 2, he earns –6 points. What is Connor's score now?
Adding the score of each round, Connor's current score is of -11 points.
How to find the sum of two negative numbers?To find the sum of two negative numbers, we keep the signal and add numbers.
For each round, Connor's scores are given as follows:
Round 1: -5 points.Round 2: -6 points.The combined score is the sum of each score, hence:
C = -5 + (-6) = -5 - 6 = -(5 + 6) = -11.
Connor's current score is of -11 points.
More can be learned about the addition of negative numbers at https://brainly.com/question/572656
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Use the protractor in the picture to find the measure of angles. THANK YOU!!!
Answer:
2b) KOM = 143°
c) as the value of a straight line is 180°, and the angle LOK is 37°, subtract 180° with 37° and you will get the value for KOM.
Step-by-step explanation:
2b) subtract 180° with 37°
c) it is just using logical and mathematical sense from the question 2b
PLEASE HELP ME ITS DUE TODAY I WILL MARK YOU BRAINLIST
5. Mia is stretching out before dance class. She sometimes places a band around her calves to get an extra stretch.
Part 1: Sketch and label the triangle that illustrates the scenario and givens required for the proof. (3 points)
Part 2: Use the spaces provided below to complete a formal proof. (5 points)
Answer:
It's Arrives
Step-by-step explanation:
What is the volume of the cylinder? Use 3.14 for π, and round your answer to the nearest tenth. Enter your answer in the box.
Answer:
235.5
Step-by-step explanation:
3.14x2.5^2x12
3.14x6.25x12
19.625x12
235.5
Answer :
240 ft³⠀
Explanation :
We know,
[tex]{ \longrightarrow \qquad{\boldsymbol {\pmb{ Volume_{(cylinder)} = \pi {r}^{2} h \: }}}}[/tex]
Where,
r is the radius of the cylinder. Here, diameter is 5 ft, so the radius will be 2.5 fth is the height of the cylinder. Here, h is 12 ft Here, we will take the value of π as 3.14 approximately .⠀
Substituting the values in the formula :
[tex]{ \longrightarrow \qquad{ { \sf{ Volume_{(cylinder)} = 3.14 \times ({2.5})^{2} \times 12 \: }}}}[/tex]
⠀
[tex]{ \longrightarrow \qquad{ { \sf{ Volume_{(cylinder)} = 3.14 \times 6.25 \times 12 \: }}}}[/tex]
⠀
[tex]{ \longrightarrow \qquad{ { \sf{ Volume_{(cylinder)} = 3.14 \times 75 \: }}}}[/tex]
⠀
[tex]{ \longrightarrow \qquad{ \boldsymbol { \pmb{ Volume_{(cylinder)} = 235.5 \: }}}}[/tex]
⠀
Therefore,
The volume of the cylinder is 240 ft approxiamtely.I need help (picture of the question above^)
Answer:
a is the answer
Step-by-step explanation:
x^2= 90
X=√90
X=3√10 (positive irrational number)
but other solutions have exact value or in decimal
write 9.68 x 10 to the power of 4 in standard form?
Answer:96,800
Step-by-step explanation:
PLEASE HELP!
Add -[tex]\frac{4}{y}[/tex] + (-[tex]\frac{7}{8y}[/tex])
WORTH 25 POINTS AND WILL MARK BRANLIEST Write an expression that can be used to determine the final cost of the cards. ThE ANSWER IS 0.8268 JUST NEED AN EXPRESSION
Answer:
Solve for x
Step-by-step explanation:
Michael needs to pay car insurance premiums of $958 two times per year. He has decided to make deposits from each paycheck to a savings account for ""Other Expenses (Predictable)"" to cover this expense. How much should Michael deposit from each paycheck if the paycheck is bi-weekly? a. $80 b. $74 c. $160 d. $37 Please select the best answer from the choices provided A B C D.
There is $74 Michael deposit from each paycheck if the payback os bi-weekly, the correct option is B.
What is the insurance?The insurer and the insured get a legal contract for the insurance, which is called the insurance policy.
Given
Car insurance premium in a first half year = $958
Car insurance premium in the second half year = $958
Total Car insurance premium in year = 2 × $958 = $ 1916
Nature of paid premium is bi-weekly = in 2 weeks
There are total 52 weeks in a year.
The total number of bi-week = 26
Total deposited amount per bi-weekly is;
= $ 1916 ÷ 26 =$ 73.69 ≈ $ 74
Hence, there is $74 Michael deposit from each paycheck if the payback os bi-weekly.
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Solve the equation.
Round your answer to the nearest hundredth.
8 =-6.6(-8d – 10)
Answer:
d = -1.1
Step-by-step explanation:
Solving
❖ Step 1: Combine like terms.
[tex](-6.6)(-8d) + (-6.6)(-10) = 8[/tex] [tex]52.8d+66=8[/tex]❖ Step 2: Subtract 66 from both sides.
[tex]52.8d+66-66=8-66[/tex] [tex]52.8d = -58[/tex]❖ Step 3: Divide both sides by 52.8.
[tex]52.8d/52.8=-58/52.8[/tex] d ≈ -1.1Therefore, d ≈ -1.1.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
HOW MANY BURGERS CAN BE MADE FROM 1,000,000,000 COWS ?
YOU CAN GET 1,200 BURGERS FROM EACH COW .
please do the work im trying to prove something
Answer:
1200000000000
Step-by-step explanation:
multiply them together
brainliest appreciated
PLEASE HELP! I WILL MAKE YOU BRAINLIST!
Answer:
D. is the answer
Step-by-step explanation:
1.5 × 8 = 12
Answer:
B
Step-by-step explanation:
first convert 12ft ti inch, i.e 1ft is 12in,
so 12ft is 144in, common ratio is 8, i.e 8in to 144in,
so, its 1in to 18in.
A bag can hold 1 1/2pounds of flour. if Mimi has 7 1/2pounds of flour, then how many bags of flour can Mimi make?
Answer:
7 1/2 ÷ 1 1/2
make them improper fractions;
15/2 ÷ 3/2
make 3/2 a reciprocal(basically flipping the fraction upside down)
15/2 ÷ 2/3
and multiply across;
15/2 x 2/3 = 30/6 which simplifies to 5 bags of flour.
Product of 6 1 5 x 79
Answer:
615×79=48,585
Step-by-step explanation:
hope it helps
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cual es el doble de un numero
Answer:
Dos veces más. Ejemplo: 4 es el doble de 2
Step-by-step explanation: