25 candles
What is profit and loss ?
Profit or Gain = Selling price – Cost Price
Loss = Cost Price – Selling Price
According to the given question,
Candles sold must cover the expenses = 100
Let x be the no. of candles that needs to be sold to cover the expenses
rent = 100
Cost price of 1 candle = CP = 1
Cost price of x candles = CP = 1x
Selling price of 1 candle = SP = 5
Selling price of x candles = SP = 5x
Therefore, from the above statements we can infer that the profit generated must be equal to the expenses,
So, SP - CP = Profit = 100
5x - x = 100
4x = 100
x = 25
Therefore, we need 25 candles that needs to be sold to cover the expenses
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If the correlation between height and weight of a large group of people is 0.75, find the coefficient of determination (as a percent) and explain what it means. assume that height is the predictor and weight is the response, and assume that the association between height and weight is linear.
Answer:
Step-by-step explanation:
Given that the correlation between height and weight of a large group of people is 0.75
Coefficient of determination = [tex]R^2 =0.75^2 =0.5625=56.25%[/tex]
Coefficient of determination gives us the strength of association between two variables and how much the variability of the response variable i.e. weight is due to the variability of the predictor variable i.e. height
When there is a linear association correlation coefficient square gives us the reason for the variability and percentage due to the variability in predictor variable
Mario buys 2 pounds of hamburger and 1 pound of sausage. Sausage costs 10 cents more per pound than hamburger. If the total cost of the meat is $5.50, what is the cost of the hamburger per pound?
how do you graph y=2sin(2x)
Liliana used 4 dark power crystals to raise 14 zombie soldiers. She wants to know how many zombie soldiers (z) she can raise with 10 dark power crystals. How many zombie soldiers can Liliana raise with 10 power crystals?
Answer:- Liliana can raise 35 zombie soldiers with 10 power crystals.
Explanation:-
Let the number of zombie soldiers raised by 10 dark power crystals be 'x'.
Zombie raised by 4 power crystals = 14
Since the number of zombie and power crystals are in direct proportion.
Therefore, we get
[tex]\frac{x}{10}=\frac{14}{4}[/tex]
Multiply 10 on both the sides, we get
[tex]\Rightarrow\ x=\frac{14}{4}\times10=35[/tex]
Liliana can raise 35 zombie soldiers with 10 power crystals.
A town has two fire engines, a and b, that operate independently. the probability that engine a is available when needed is 0.96. the probability that engine b is available when needed is also 0.96. 12. what is the probability that neither fire engine is available when needed?
Koji is installing a rectangular window in an office building. The window is 8/23 feet wide and 5/34 feet high. The formula for the area of a rectangle is A=bh. What is the area of the window? Enter your answer as a mixed number in simplest form in the box. $$ ft2
Can someone explain? Please help! 15 pts!!!!
20=[35/8]+[9/2]+[21/4]+[x]
x=20-(35/8)-(9/2)-(21/4)
x=20-(35+4*9+2*21)/8-----> 20-113/8------- > (8*20-113)/8
x=47/8---------- > 5.875=5 7/8
the
answer is 5 7/8 in
Admission to the state fair costs $5 and each ride costs $0.75. If Ahmed wants to spend no more than $14 at the fair, how many rides can he ride?
-Show All Work Please-
round 543,873 to nearest ten thousand
Final answer:
To round 543,873 to the nearest ten thousand, we assess the digit in the ten thousand's place (4) and the digit to its right (3). Since the latter is less than 5, we round down, resulting in 540,000.
Explanation:
The question asks to round the number 543,873 to the nearest ten thousand. To do this, we look at the digit in the ten thousand's place, which is 4, and then look at the digit to its right, which is 3. If the digit to the right is 5 or above, we would round up. However, since it's less than 5, we round down. Therefore, 543,873 rounded to the nearest ten thousand is 540,000.
what is the product of (2p+7)(3p^2+4p-3)
What is the beat estimate for the quotient? 591.3 device by 29
What is the value of h?
Answer:
Step-by-step explanation:
H=9 is the answer
How do you solve 7.2>0.9(n+8.6)
After solving the given equation, the value obtained for n will be equal to n < -0.6.
What is an equation?Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.
This relationship is illustrated by the left and right expressions being equal to one another. The left-hand side equals the right-hand side is a basic, straightforward equation.
As per the equation given in the question,
7.2 > 0.9(n + 8.6)
Solve the equation for n,
7.2 > 0.9n + 7.74
7.2 - 7.74 > 0.9n
-0.54/0.9 > n
-0.6 > n or,
n < -0.6
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Samples of size n = 9 are selected from a population with μ = 80 with σ = 18. what is the expected value of m, the mean of the distribution of sample means?
translated 2 units left and 9 units down
The translation of the given expression is "[tex]\bold{y=(x+2)^2-9}[/tex]"
Translation of equation:Given:
"translated 2 units left and 9 units down".
we assume the equation is "y" so, the translation of the above-given expression is equal to "[tex]\bold{y=(x+2)^2-9}[/tex]".
Please find the attached diagram for the translated expression.
Find out more information about the translation here:
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jack has 3 quarters, 2 dimes, and one penny. how much money does jack have in all? show your work.
Which of the following is the same as 5(2 − 1)?
a 5 − 2 − 1
b 5 × 2 × 1
c 10 − 1
d 10 − 5
e one of the above
what do i do?? i just have to find what the the question marks show.
Can someone help please? solve by system on inequalities solve each system by graphing
Carlisle is testing different types of planting soil to determine which type is most effective in growing blueberry bushes. He purchases 2 different brands of planting soil from a local store. Carlisle applies Brand A to an area of the yard that receives full sunlight and Brand B to another area of the yard that is in partial shade. He waters both areas daily. At the end of the study, Carlisle concludes Brand A is more effective in growing blueberry bushes. Why is his conclusion not valid?
Help with this math question please
Chris has $100 in his savings account and he adds $20 a month to the account. The total amount can be represented by the linear function T = 20x + 100. His goal is to have a total of $300 in four more months. What should he change in the function to reach this goal? A) Change the amount he adds each month to $50. B) Change the amount he adds each month to $40. C) Change the y-intercept of the linear function to $20. D) Change the y-intercept of the linear function to $50.
Answer:
Its A i did USAtestprep
Step-by-step explanation:
A
Imagine a world in which only decimal,not fractions,are used.how would your life be different
There are 1,505 fruits for sale at at farmer’s market. 39% of them are apples, 28% are oranges, 13% are honeydrew melons, and the rest are watermelons. How many watermelons are there ?
Answer:
13
Step-by-step explanation:
In a local survey, 100 citizens indicated their opinions on a revision to a local land use plan. of the 62 favorable responses, there were 40 males. of the 38 unfavorable responses, there were 15 males. if one citizen is randomly selected find the probability a male and has a favorable opinion
The probability that a male and has a favorable opinion is selected is 2/5
Further explanationThe probability of an event is defined as the possibility of an event occurring against sample space.
[tex]\large { \boxed {P(A) = \frac{\text{Number of Favorable Outcomes to A}}{\text {Total Number of Outcomes}} } }[/tex]
Permutation ( Arrangement )Permutation is the number of ways to arrange objects.
[tex]\large {\boxed {^nP_r = \frac{n!}{(n - r)!} } }[/tex]
Combination ( Selection )Combination is the number of ways to select objects.
[tex]\large {\boxed {^nC_r = \frac{n!}{r! (n - r)!} } }[/tex]
Let us tackle the problem.
This problem is about Probability.
Given:
Of the 62 favorable responses, there were 40 males and 22 females.
Of the 38 unfavorable responses, there were 15 males and 23 females.
There were total (40+15) males = 55 males
Let P(M) = probability a male is selected
[tex]P(M) = \frac{\texttt{Number of Male Citizens}}{\texttt{Total Number of Citizens}}[/tex]
[tex]P(M) = \boxed{\frac{55}{100}}[/tex]
There were 62 favorable responses
Let P(F) = probability citizens has a favorable opinion is selected
[tex]P(F) = \frac{\texttt{Number of Favorable Opinion Citizens}}{\texttt{Total Number of Citizens}}[/tex]
[tex]P(F) = \boxed{\frac{62}{100}}[/tex]
Let P(M ∪ F) = probability a male or citizens has a favorable opinion is selected
[tex]P(M \cup F) = \frac{\texttt{Number of Favorable Opinion Citizens or Male Citizens}}{\texttt{Total Number of Citizens}}[/tex]
[tex]P(M \cup F) = \frac{40 + 15 + 22}{100}[/tex]
[tex]P(M \cup F) = \boxed{\frac{77}{100}}[/tex]
At last , the probability a male and has a favorable opinion could be calculated as follows:
[tex]P(M \cap F) = P(M) + P(F) - P(M \cup F)[/tex]
[tex]P(M \cap F) = \frac{55}{100} + \frac{62}{100} - \frac{77}{100}[/tex]
[tex]P(M \cap F) = \frac{40}{100}[/tex]
[tex]P(M \cap F) = \large{\boxed {\frac{2}{5}} }[/tex]
Learn moreDifferent Birthdays : https://brainly.com/question/7567074Dependent or Independent Events : https://brainly.com/question/12029535Mutually exclusive : https://brainly.com/question/3464581Answer detailsGrade: High School
Subject: Mathematics
Chapter: Probability
Keywords: Probability , Sample , Space , Six , Dice , Die , Binomial , Distribution , Mean , Variance , Standard Deviation
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