Answer:
There are 10 ghosts, 6 witches, and 4 scarecrows
Step-by-step explanation:
20 = ghosts, witches, and scarecrows.
ghost = x
20 = x + (x-4) + (x-4-2)
20 = 3x-10
30 = 3x
x = 10
10 = ghosts
10-4 = 6 = witches
10-4-2 = 4 = scarecrows
The number of witches and ghosts at the haunted house are 6 and 10 respectively.
Given that, a total of twenty ghosts, witches, and scarecrows at the haunted house.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Let the number of ghosts be x.
Here,
The number of witches is four less than the number of ghosts
Witches =x-4
The number of scarecrows is two less than the number of witches
Scarecrows =x-4-2
= x-6
Total=x+x-4+x-6
3x-10=20
⇒3x=30
⇒x=10
So, number of witches = 6 and number of scarecrows=4
Therefore, the number of witches and ghosts at the haunted house are 6 and 10 respectively.
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pls help me is due in 30 min
Problem: Mickey Mouse has an account balance of $250 and is withdrawing $15 per
week. Minnie Mouse has $100 in her bank account and deposits $10 each week. At what
week will they have the same amount in their accounts? What will that amount be?
What are you trying to find out:
Workspace:
Solution:
Answer this easy IXL question please
Answer:
∠C = 30°
Step-by-step explanation:
Trigonometry:[tex]\sf Tan \ \theta = \dfrac{opposite \ side}{adjacent \ side}[/tex]
[tex]\sf = \dfrac{5\sqrt{41}}{5\sqrt{123}}\\\\=\sqrt{\dfrac{41}{123}}\\\\=\sqrt{\dfrac{1}{3}}\\\\= \dfrac{1}{\sqrt{3}}[/tex]
[tex]\sf C =tan^{-1} \ \dfrac{1}{\sqrt{3}}[/tex]
= 30°
A concert lasts 1 hour and 30 minutes during the concert orchestra plays for 72 minutes. how long will they play if the concert is 2 hours and 45 minutes long?
PLEASE HELP
If the concert is 2 hours and 45 minutes long, then the length of time for which the orchestra is played is; 132 minutes.
How long will they play the orchestra of the concert is 2 hours and 45 minutes long?It follows from task content that the length of time for which the orchestra is played be determined by proportion.
Since the number of minutes in 1 hour 30 minutes is; 90 minutes while the number of minutes in 2 hour 45 minutes; 165 minutes.
It therefore follows from proportion that the time for which the orchestra is played in a 2 hours and 45 minutes is;
72/90 = x/165
x = (165 × 72)/90
x = 132 minutes.
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(b) Estimate the percentage of customer accounts for which the number of days is between 21 and 35.Almost allof the customer accounts have payment made between 21 and 35 days.
Given Information:
Average number of days = 28
Standard deviation = 7
Required Information:
Between what two values will approximately 95% of the number of days be?
Solution:
Recall the Empirical Rule,
68% of the data fall within 1 standard deviation from the mean.
95% of the data fall within 2 standard deviations from the mean.
99.7% of the data fall within 3 standard deviations from the mean.
Since we are asked for 95%
Lower limit = μ - (2)σ
Upper limit = μ + (2)σ
Where μ is the average number of days and σ is the standard deviation.
Lower limit = 28 - (2)7 = 28 - 14 = 14 days
Upper limit = 28 + (2)7 = 28 + 14 = 42 days
Part (b)
Estimate the percentage of customer accounts for which the number of days is between 21 and 35.
Lower limit = 21
Upper limit = 35
Lower limit = μ - (x)σ
21 = 28 - (x)7
(x)7 = 28 - 21
(x)7 = 7
x = 7/7 = 1
Which means that 68% of the customer accounts have payment made between 21 and 35 days.
can anybody tell me what 11.8 x 5 is step by step ?
Step-by-step explanation:
hope this helps!! the explanation is in my working. bring the "4" from the "40" (8 x 5) to the top of "1"
Answer:
59
Step-by-step explanation:
To mutlipy a decimal by a whole number, just multiply it like normal
118 x 5 = 590
11.8 has one decimal place so your answer will have one too
59.0 which is the same as 59
what is the slope.example answer:m=1
The slope of the given line 2 / 3
What is a slope ?Whenever the equation of a line is written in the form y = mx + b, it is called the slope-intercept form of the equation. The m is the slope of the line. And b is the b in the point that is the y-intercept (0, b). For example, for the equation y = 3x – 7, the slope is 3, and the y-intercept is (0, −7).
The given graph indicates that the two points are :
A( 3 , 0 ) and B (0 , -2 )
Thus the slope can be given by the formula mentioned below :
[tex]\frac{y_{2}- y_{1} }{x_{2}- x_{1} }[/tex]
this means - 2 - 0/ 0 - 3
= - 2/ -3
2 / 3
Thus the slope of the given line 2 /3
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I am SO confused. Are < and > the signs that have a closed dot on a number line, or do they have an open one? Please help!
The symbols '>' and '<' have an open dot when displayed on the number line.
Why do the prescribed symbols have an open dot and not a closed dot?
The '>' and '<' symbols have an open dot on the number line because the number that succeeds the symbol is not considered while plotting the range of values that would satisfy any given equation.
Moreover, if a closed dot is put in there, the whole solution becomes incorrect as an unwanted value gets included in the range of values of the domain of the given function.
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|x| + 4> 8 .............
Answer:
x>4, x<-4
Step-by-step explanation:
|x| + 4 > 8
|x| > 4
x>4, x<-4
Which expression is equivalent to k4⋅m9⋅−(k5m4)0?
Answer: eighty-eight thousand
Step-by-step explanation:
The expression equivalent to [tex]k^4m^9 - (k^5m^4)[/tex] would be; [tex]k^{-1}m^5[/tex]
What are equivalent expressions?Those expressions that might look different but their simplified forms are the same expressions are called equivalent expressions.
To find equivalent expressions of some expressions, we can either make it look more complex or simple. Usually, we simplify it.
We need find the expression into an equivalent form [tex]k^4m^9 - (k^5m^4)[/tex]
This expression could also be given by;
[tex]k^4m^9 - (k^5m^4)[/tex]
Now subtract the like terms to get the values then we get;
[tex]k^4m^9 - (k^5m^4)[/tex] = [tex]k^{-1}m^5[/tex]
Hence, the expression equivalent to form [tex]k^4m^9 - (k^5m^4)[/tex] would be; [tex]k^{-1}m^5[/tex]
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f(x) = 2x + 2 in graph form
Solve for X please help I do not understand !
Answer:
x=45
Step-by-step explanation:
10. Higher Order Thinking Winston compares the heights of two plants
to see which plant grows more per day. The table shows the height
of Plant 1, in centimeters, over 5 days. The graph shows the height
of Plant 2, in centimeters, over 10 days. Winston says that since
Plant 1 grows 6 cm per day and Plant 2 grows 4 cm per day,
Plant 1 grows more per day.
Plant 1
Days
2
Height (cm) 6
a. Do you agree with Winston? Explain your response.
3 4 5
9 12 15
b. What error might Winston have made?
Answers to both subparts are shown:
Although Plant 2 clearly grew 2 cm per day as per the graph, Plant 1 still outgrew Plant 2 by 4 cm.Winston's claim that Plant 2 grows 4 cm per day is false, as shown by the graph, which contradicts Winston's claim, and Plant 2 actually grows 2 cm per day.What is a graph?The relationship between lines and points is described by a graph, which is a mathematical representation of a network. A graph is made up of some points and connecting lines. It doesn't matter how long the lines are or where the points are located. A node is a name for each element in a graph.So, (A) The given statement of Winston is partially correct.
In the graph, we can clearly see that Plant 2 grew 2 cm per day, but still, Plant 1 grows more than plant 2 by 4 cm.(B) Error in Winston's statement:
From the above part, we know that the error is Winston's statement that Plant 2 grows 2 cm per day, but according to the graph Plant, 2 grows by 2 cm per day.Therefore, answers to both subparts are shown:
Although Plant 2 clearly grew 2 cm per day as per the graph, Plant 1 still outgrew Plant 2 by 4 cm.Winston's claim that Plant 2 grows 4 cm per day is false, as shown by the graph, which contradicts Winston's claim, and Plant 2 actually grows 2 cm per day.Know more about graphs here:
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Find the area of a square tile which has a width of 3x - 5
Answer:
[tex]9x^2 - 30x + 25[/tex]
Step-by-step explanation:
To solve for area, multiply the width times the height. In this case, since the shape is a square, the width is the same as the height. So, multiplying 3x - 5 times 3x - 5 should give us the area.
[tex](3x-5)(3x-5)\\(3x)(3x) + (3x)(-5) + (-5)(3x) + (-5)(-5)\\9x^2 - 15x - 15x + 25\\9x^2 - 30x + 25[/tex]
If you don't understand the algebra there, use an area model, and please let me know if you're not sure how to do that. I'll help you out as much as I can! :)
The length of the hypotenuse of a right triangle is 13cm. The length of one leg is 5cm. Find the length of the other leg.
Each month, members of the museum either renew or cancel Month Members lost Members Added Net Change in Members January "-13" 89 February "-28" 12 March "-67" 54 April "-3" 17 From the table above,what is the total change in members? Flag question: Question 6 Question 61 pts From the table above, what is the average change over the four months?
1. The total change in the members is 61.
2. The average or mean vhange over the four months is 15.25.
How to calculate the value?1. The total change in the members based on the information will be the addition of the values given. This will be:
= (-13 + 89) (-28 + 12) + (-67 + 54) + (-3 + 17)
= 76 -16 - 13 + 14
= 61
The change is 61.
2. The average change over the four months will be the addition of the values divided by 4. This will be:
= Total change / 4
= 61 / 4
= 15.25
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a bicylist started riding at 8:00 am the digram below shows the distance the bicylist had traveled at diffrent times. what was the bicylist average rate of speed in miles per hour
there is no answer because there is no .Th in what ever you ate trying to talk abput
List -2.7, -2.27, -2.3, -0.35 from least to greatest
A number with a whole number and a fractional component separated by a point is referred to as a decimal.
What is meant decimal places?A number with a whole number and a fractional component separated by a point is referred to as a decimal.
The word Decimus, which means tenth in Latin, is derived from the base word Decem, or 10. As a result, the decimal system, often known as a base-10 system, has 10 as its fundamental unit.
The tenth place is represented by the first digit following the decimal. The hundredth place is represented by the digit that follows the decimal. Up until there are no more digits, the remaining ones keep the place values filled in.
The accepted method for representing both integer and non-integer numbers is the decimal numeral system. It is the expansion of the Hindu-Arabic numeral system to non-integer values. There are various ways to represent numbers in the decimal system referred to as decimal notation.
Therefore, the correct answer is -2.7, -2.3, -2.27, -0.35.
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The bakers at Healthy Bakery can make 310 bagels in 5 hours. How many bagels can they bake in 18 hours?
Answer:
Step-by-step explanation:
310/5=62 so he makes 62 in 1 hour
62x18=1116 so he makes 1116 in 18 hours
-13 = p/7
WILL MARK BRAINLIEST!!
Answer:
-91
Step-by-step explanation:
-13 x 7
The perimeter of the figure below is 60.7 ft. Find the length of the missing side. 7.2 ft 4.1 ft 4.1 ft 4.1 ft 4.1 ft 12.8 ft ? 1.9 ft 1.9 ft 7.2 ft (Note: diagram is NOT to scale)
we know that
The perimeter of the figure is equal to the sum of its length sides
so
P=7.2(2)+4.1(2)+4.1(2)+12.8+1.9(2)+x
Combine like terms
P=47.4+x
Remember that
P=60.7 ft
substitute
60.7=47.4+x
x=60.7-47.4
x=13.3 ft
therefore
the answer is
13.3 ft3. Solve the following equations.
a. 33.5 ÷ 10 = b. 412 ÷ 10 =
c. 73.6 ÷ 10 = d. 6,132 ÷ 10 =
4. Explain the placement of the decimal point when dividing by a power of 10.
The corresponding solutions of equations a, b, c and d are 3.35. 41.2, 7.36 and 613.2
How to solve an equation with powers of 10?a. 33.5 ÷ 10 = 3.35
b. 412 ÷ 10 = 41.2
c. 73.6 ÷ 10 = 73.6
d. 6,132 ÷ 10 = 613.2
When a number is divided by powers of 10, the decimal point moves to the left side by the number of places the power has e.g
345 ÷ 10 = 34.5 (It moves one place to the left because the power of 10 is 1 i.e. 10 = 10²)
3456 ÷ 100 = 34.56 (It moves two places to the left because the power of 100 is 2 i.e. 10 = 10²)
Therefore, the solution of a, b, c and d are 3.35. 41.2, 7.36 and 613.2 respectively.
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you have $1 and you are going to buy some pencils and 7 patties let X represent the number of pencils you can buy and let y represent the number of peppermint patties you can buy if pencils cause 0.10 each and Peppermint Patties cost 0.05 each write a linear equation in standard form that represents this situation what does the x intercept represent? what does the Y intercept represent
Let:
x = Number of pencils you can buy
y = Number of peppermint patties you can buy
a = cost of each pencil
b = cost of each peppermint patty
The standard form of a linear equation is given by:
[tex]\begin{gathered} Ax+By=C \\ \\ \end{gathered}[/tex]So:
[tex]0.1x+0.05y=1[/tex]The graph of this equation is:
The x-intercept represents the maximum number of pencils you can buy
The y-intercept represents the maximum number of peppermint patties you can buy
in a bag of marbles there are 3 green marbles, 2 red marbles, and 5 blue marbles. you randomly select two marbles from the bag where the first marble is not put back into the bag. what is the probability of getting two blue marbles?
The probability is 1/9.
What is probability?Probability is the possibility that something is going to occur.Whenever the outcome of an event is uncertain, we can speak of the probability, or likelihood, of a particular outcome. Analyzing events according to their probabilities is called statistics. Probability is calculated by dividing the number of ways an event can occur by the total number of outcomes. Probability and odds are different concepts. Probability mainly he has three types. theoretical probability. experimental probability. axiomatic probability. A simple probability is a calculation of the probability of an outcome or event occurring. Insurance companies use probability statistics to determine the likelihood that a claim will have to be paid. A simple probability is calculated by dividing a specific outcome by all possible outcomes.To learn more about probability from the given link :
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Question
Divide.
16.85÷5
Answer:3.37
Here hope this helps
Melissa's average daily balance for the last month was $560. The finance charge was $8.12.
What was the monthly percentage rate? Round to the nearest hundredth of a percent.
Answer:
1.45%
Step-by-step explanation:
[tex] \frac{8.12}{560} (100) = .0145(100) = 1.45\%[/tex]
Is 33/2 a terminating or a repeating decimal?
Answer: Terminating
Step-by-step explanation:
I'm pretty sure because 16.5 isn't repeating
Answer:
Terminating decimal
Step-by-step explanation:
33/2=16.5
the decimal point does not go on forever so its a terminating decimal
Please please please help, due in 10 minutes!!! Anyeny bought 3/4 pound of raspberries for $6. What is the cost of 1&1/4 pounds of raspberries?
Answer
The cost of 1 and (1/4) pounds of raspberries is $10.
Explanation
Anyeny bought (3/4) pounds of raspberries for $6.
What is the cost of 1 and (1/4) pounds of raspberries.
[tex]1\frac{1}{4}=\text{ }\frac{5}{4}[/tex]
(3/4) pounds = $6
(5/4) pounds = x dollars
Creatin a mathematical relation by cross multiplying
(3/4) × x = (5/4) × 6
[tex]\begin{gathered} \frac{3}{4}\times x=\frac{5}{4}\times6 \\ \frac{3x}{4}=\text{ }\frac{30}{4} \\ \text{Cross multiply} \\ 3x\times4=30\times4 \\ 12x=\text{ 120} \\ \text{Divide both sides by 12} \\ \frac{12x}{12}=\frac{120}{12} \\ x=10 \end{gathered}[/tex]Hence, the cost of 1 and (1/4) pounds of raspberries is $10.
Hope this Helps!!!
A medical company tested a new drug for possible side effects. The table shows the relative frequency that a study participant experienced the side effect.
Does this data suggest an association between age and experiencing side effects?
HELP ME PLS I NEED TO GET 5 of these done!
The value of y which is calculated from the perimeter given = 7
What is perimeter?Perimeter is defined as the sum total of all the sides of an object. Therefore the perimeter of a square is the sum of the four sides = a+ b+ c +d
The perimeter of the square= 132 units.
The given sides = 2(4y + 3) and ,2(5y)
That is,
132 = 2(4y + 3) + 2(5y)
132= 8y + 6 + 10y
132 = 18y + 6
Make 18y the subject of formula;
18y = 132-6
18y = 126
y = 126/18
y= 7
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