9) You are a contractor and charge $55 for a site visit plus an additional $25 per hour for each hour you spend
working at the site, Write and solve an equation to determine how many total hours you have to work to earn
$555 working at a site.
Okay
The contractor would have to work for 20 hours on the site to earn $555 total pay
What is total cost function?
Total cost function is the sum of the fixed charge, which is fixed cost to the person paying the contractor when the contractor visits the site and charge per hour multiplied by the number of hours spent working
TC=a+bX
TC=total cost=$555
a=fixed charged=$55
b=charge per hour=variable element of contractor's pay=$25
X=number of hours spent working=unknown
$555=$55+$25X
$555-$55=$25X
$500=$25*X
X=$500/$25
X=20
The contractor needs to work for 20 hours in order to earn a total pay of $555
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3 ways to make whole 2.8
Step-by-step explanation:
please mark me as brainlist please
Answer:
2.8 as a whole is 2 4/5. Take out the fraction, 4/5.2.8 can also be 28/10 which is the improper number of 2 8/10.2.8 can also be simplified to 1.4, 1.4 is 1 2/5.please consider brainliest
* Ono 3 b) P and are the subsets of universal set U. If n (p) = 55% n (Q) = 50% and n(PUO)complement = 15% find: (i) n(PUQ) (ii) n(PDQ) (iii)n(only P) iv. n(only Q).
The probability of the sets are solved and
a) n(P U Q) = 85%
b) n(P ∩ Q) = 20%
c) n(only P) = 35%
d) n(only Q) = 30%
Given data ,
P and are the subsets of universal set U
And , n (p) = 55% n (Q) = 50% and n(PUO)complement = 15%
Now , we'll use the formula for the union and intersection of sets:
n(P U Q) = n(P) + n(Q) - n(P ∩ Q)
n(P ∩ Q) = n(P) + n(Q) - n(P U Q)
n(only P) = n(P) - n(P ∩ Q)
n(only Q) = n(Q) - n(P ∩ Q)
We're given that:
n(P) = 55%
n(Q) = 50%
n(P U Q)' = 15%
To find n(P U Q), we'll use the complement rule:
n(P U Q) = 100% - n(P U Q)'
n(P U Q) = 100% - 15%
n(P U Q) = 85%
Now we can substitute the values into the formulas above:
(i)
n(P U Q) = n(P) + n(Q) - n(P ∩ Q)
n(P ∩ Q) = n(P) + n(Q) - n(P U Q)
n(P ∩ Q) = 55% + 50% - 85%
n(P ∩ Q) = 20%
(ii)
n(P ∩ Q) = 20%
(iii) n(only P) = n(P) - n(P ∩ Q)
n(only P) = 55% - 20%
n(only P) = 35%
(iv)
n(only Q) = n(Q) - n(P ∩ Q)
n(only Q) = 50% - 20%
n(only Q) = 30%
Hence , the probability is solved
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The number of buttons a machine produces varies directly as the time it is
running. If the machine produces 688 buttons in 12 min, how many would it
produce in 15 min?
Answer: 860 buttons
Step-by-step explanation: 688/12 = 57.3333333...
57.3333... multiplied by 15 is equal to (860 buttons)
Find the solution to the system of equations below:
y = 4x + 20
y = 8x - 4
Answer:
(6, 44)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Algebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = 4x + 20
y = 8x - 4
Step 2: Solve for x
Substitution
Substitute in y: 8x - 4 = 4x + 20Subtract 4x on both sides: 4x - 4 = 20Add 4 on both sides: 4x = 24Divide 4 on both sides: x = 6Step 3: Solve for y
Define equation: y = 8x - 4Substitute in x: y = 8(6) - 4Multiply: y = 48 - 4Subtract: y = 44What is the answer? Please help
A child's ticket is 10 dollars. An adult's ticket is 19 dollars.
X= adult ticket
y= child ticket
3x + 4y = 97 (multiply by negative 2)
2x + 3y = 68 (multiply by 3)
-6x - 8y = -194
6x + 9y = 204
(add)
y= 10
Then choose an equation to substitute y for 10 to get 19.
I need help what’s the answers
Answer:
Quadratic
Step-by-step explanation:
The format for a quadratic function is: y= ax^2+bx+c.
This matches your equation.
I need answer I am having brain damage : (
Answer:
a = 8/3b or b = 3/8a
Step-by-step explanation:
The fractions present in the table, 24/9 and 40/15, are equivalent to 8/3, showing a linear relationship between the variables a and b. Knowing this, reducing any of the 3 fractions to its lowest form will allow you to find the information necessary to develop an equation. As 8/3 turns out to be the simplest form of any of the fractions, the equation is a = 8/3b, or, if you decide to reverse the variables, b = 3/8a.
Write and solve a real world problem that can be represented by the
expression -3(5) + 25.
Answer:
Mrs. Alexa has to buy one whiteboard marker for her class every week because her students keep stealing them. Each marker costs three dollars. The school has given her $25 for her school expenses. If she uses the money from the expenses to buy markers, how much money will she have after five weeks?
She has 10 dollars after five weeks.
Step-by-step explanation:
-3 is the price of each marker reducing her overall money.
5 is how many markers she should buy in 5 weeks.
$25 is the money grant that the school gave her.
what would be the resulting difference if the line transition: width 2s, height 2s; was removed from the first css rule?
Answer:
ages would no longer get larger as the mouse hovers over them. The transition would happen over 10s, since this is the default duration.
Step-by-step explanation:
Answer the following questions below: True or False- A survey timeline indicates the date for activation of the measurement instrument.True or False- Instrument disposition can involve the creation and delivery to a dropbox for paper-and-pencil instruments.True or False- Participant data entry can increase the accuracy of a data record.True or False- A significant number of "Don’t Know" responses to a closed measurement question may mean that the measurement instrument failed to provide appropriate response categories.True or False- When cross-tabulation is used in CFA for testing purposes, it’s called a contingency table.True or False- Percentages translate the data to a base of 100, paving the way for relative comparisons between variables.True or False
The answers to the questions below are as follows:
True: A survey timeline indicates the date for activation of the measurement instrument.True: Instrument disposition can involve the creation and delivery to a dropbox for paper-and-pencil instrumentsTrue: Participant data entry can increase the accuracy of a data record.True: A significant number of "Don’t Know" responses to a closed measurement question may mean that the measurement instrument failed to provide appropriate response categories.False: When cross-tabulation is used in CFA for testing purposes, it’s called a contingency table.True: Percentages translate the data to a base of 100, paving the way for relative comparisons between variables.What CFA?It is an acronym for Confirmatory Factor Analysis, which is a statistical tool that consists of testing a hypothetical factorial structure of a variable conunt. This is a form of modeling of structural equations (without) and is commonly performed using specialized software, whose objective is to test the the quality of the hypothetical factorial structure in relation to the observed data.
Therefore, it is concluded that the false alternative is one that states that the cross-tubulation is used in CFA for test purposes, which is not true, as the cross-tubulation is used in the contingency table.
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Find the missing angle. 60° 80° 90° 200
Answer:
80
Step-by-step explanation:
140-60
Lindsey wants to figure out her final math grade scores are 88.5% 90% 82% 94.5% and 80% what is Lindsey‘s final average?
Answer:
87%
Step-by-step explanation:
88.5% + 90% + 82% + 94.5% + 80% = 435%435% ÷ 5 = 87%So, Lindsey's final average is 87%I hope this helps!
Can you please help me and explain this in a way that I can understand
Answer:
180 Degrees
Step-by-step explanation:
So, m∠1 = m∠2 = m∠3 means that these angles are the same degrees
The question asks whats the degree of m∠CDG so first we find those points. In this image, it looks like points C,D and G form a line which is also equivalant to 180.
I hope you understand! If not, i'll try to elaborate more
Can anyone Help me on this ?
Answer: 52=y and 15=x
Step-by-step explanation:
Since we know m and n are parallel that means alternate exterior angles are equal to each other.
The angle with 8x+8= the angle above the one that says 3x+7
Two angles on a line add up to 180 so 8x+8+3x+7=180
Now we can solve
\(8x+8+3x+7=180\\(8x+3x)+(8+7)=180\\11x+15=180\\11x+15-15=180-15\\11x=165\\\frac{11x}{11} =\frac{165}{11} \\x=15\)
Now we know that x=15
The angle y and the angle of 3x+7 are corresponding angles. Corresponding angles are congruent. Subbing in 15 for x we can solve for y
\(3(15)+7=y\\45+7=y\\52=y\)
HELP!!!!
Drag numbers to complete the table for missing values of x, x2, and x3
Here, the value of x = 20, x² = 400 and x³ = 8000.
What is Factorization ?
The breaking or breakdown of one entity into a product of another entity, or factors, which when multiplied together yield the original number, is known as factorization or factoring in mathematics.
We've x³ = 8000 ...............equation 1
we can factor it as follows :
8000 = 2×2×2×10×10×10
8000 = 2³ × 10³
8000 = 20³ .............................equation 2
Now, By comparing equation 1 and 2,
We get, x = 20.
So, x² = 20 × 20 = 400.
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i don’t know what to do, please help!!
Answer:
b 7
Step-by-step explanation:
open the bracket and the power gets cancelled because it will be 5/5
then answer will be 7 to the power 1 which is equals to 7
GIVING BRAINLIEST FOR THE RIGHT ANSWER , I need help with this question!!
Answer: x \(\geq\) 9
Step-by-step explanation:
1. A full circle represents that 9 is included in the equation which means that the only two answers could be x \(\geq\) 9 or x \(\leq\) 9
2. Then we would look at the arrow which is pointing to the positive side and shows us that x is greater than 9.
3. When we put the signs together we get x \(\geq\) 9
Suppose 40-gallon tank is completely filled with water: The water then begins draining from the tank constant rate of 1.5 gallons per minute, Let represcnt tbc number 0f Minutes : sunce the watcr began draining; and let represent Ihe number of gallons of water the tank; Defing- fonula represent the volume of water in the tank, % tcrms of the number of minutes, since the water began draining from the tank: Sketch = graph of v in ters of t, 7Z 30+}s14445 Delermint the following slalemnents aTC false. Sclcci Onseci The graph of v the relalionshp. Letis of t represents all Nirs Wc anu VOMuC vilues (7.5,33.76) convey that when thc tank has been draining noint has35. 75 pallons walcr rcmiltang Sultclan answe For 7.5 minutes lhe solve thc cquation L.5t. t Use the Eraph thc equation above delenmnines
The formula that represents the volume of water in the tank in terms of the number of minutes since the water began draining is v = 40 - 1.5t.
This can be seen by realizing that the volume of water in the tank decreases by 1.5 gallons per minute, so after t minutes the volume will be 40 - 1.5t. The graph of this formula is a straight line with a slope of -1.5 and an intercept of 40. This means that the graph starts at the point (0,40), which represents a tank that is full of water, and decreases linearly as the number of minutes increases.
The statement "The graph of v in terms of t represents all possible values of v and t" is true. This is because the formula v = 40 - 1.5t is defined for all possible values of t, and the graph of this formula includes all possible pairs of (v, t) values that satisfy the formula.
The statement "The point (7.5,35.75) conveys that when the tank has been draining for 7.5 minutes, it has 35.75 gallons of water remaining" is false. This is because the point (7.5,35.75) does not lie on the graph of the equation v = 40 - 1.5t. The correct point on the graph that represents the volume of water in the tank after 7.5 minutes would be (7.5,26.25), which can be found by substituting t = 7.5 into the equation v = 40 - 1.5t.
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Approximate the value of f'(5.245) if f(x) = In(3x) + sin(5x- 4)-3 Using Forward Differencing. h = 0.025 -4.58872425 -4.534479401 O-4.73245564 5 pts -4.660589945 Question 10 Approximate the value of f"(2.156) if f(x) = 2tan(x) + cos(2x). h = 0.003 O-18.22610955 8.396938164 O8.424277328 O-18.51527191 5 pt
Answer:
9. (a) -4.58872425
10. (a) -18.22610955
Step-by-step explanation:
You want the approximate value of f'(5.245) if f(x) = ln(3x) +sin(5x -4) -3 and the approximate value of f''(2.156) if f(x) = 2tan(x) +cos(2x) using h = 0.025 and 0.003, respectively.
9. f'(5.245)The approximate value of f'(x) is the difference quotient ...
f'(x) ≈ (f(x+h) -f(x))/h
For x=5.245 and h=0.025, this is ...
f'(x) ≈ ((f(5.245 +0.025) -f(5.245))/0.025
The calculator screen in the first attachment shows the value of this is about ...
f'(5.245) ≈ -4.58872425
10. f''(2.156)For the second derivative, we use ...
f'(x) ≈ ((f(x +h) -f(x))/h
f''(x) = (f'(x -h) -f'(x))/h
The calculator screen in the second attachment shows the calculations and the final value of f''(2.156) as ...
f''(2.156) ≈ -18.22610955
__
Additional comment
Note that the calculator must be set to radians mode.
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the size of bass caught in strawberry lake is normally distributed with a mean of 12 inches and a standard deviation of 5 inches. suppose you catch 6 fish. what is the probability the average size of the fish you caught is more than 14 inches? g
The probability that the average size of the fish you caught is more than 14 inches is 0.1635 or 0.164
The size of bass caught in Strawberry Lake is normally distributed with a mean of 12 inches and a standard deviation of 5 inches.
If you catch 6 fish, the probability that the average size of the fish you caught is more than 14 inches is 0.202.
Here,
we need to find the probability that the average size of the fish you caught is more than 14 inches.
Let us denote the size of the bass caught in Strawberry Lake by X.
Then, X ~ N(μ = 12, σ = 5) represents the normal distribution of the size of bass caught in Strawberry Lake.
Let Y be the sample mean of 6 bass caught in the Strawberry Lake.
Then,
We know that Y ~ N(μ = 12, σ = 5/√6) represents the sampling distribution of the sample mean,
where σ = 5/√6
= 2.0412 (approx).
We are given that we have caught 6 fish.
Therefore, the sample size n = 6.
Then,
The probability that the average size of the fish you caught is more than 14 inches can be obtained as follows:
P(Y > 14) = P((Y - μ)/σ > (14 - μ)/σ)
= P(Z > (14 - 12)/2.0412)
= P(Z > 0.977)
= 1 - P(Z < 0.977) (as the standard normal distribution is a continuous distribution)
Using the standard normal distribution table, we get P(Z < 0.977) = 0.8365 (approx) Therefore, P(Y > 14) = 1 - P(Z < 0.977) = 1 - 0.8365 = 0.1635 (approx)
Therefore,
The probability that the average size of the fish you caught is more than 14 inches is 0.1635 or 0.164 (approx).
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Paula, lohn, Kelsie, and Eart found 6 quarters, 3 dimes, and 2 pennies in the laundry machine. They decide they will share the money
equally
Which expression can be used to figure out how much money each child will receive?
A)
4 x 1.52
B)
$1.82 x 4
$1.82 +4
D)
4 - $1.82
Answer:
1.82/4 i am gussing b
Step-by-step explanation:
PLEASE HELP FAST!
what is the length of segment AB?
10
12
13
15
Answer:
13
Step-by-step explanation:
This triangle appears to be 5 units wide and 12 units tall.
Using the pythagorean theorem, a^2 + b^2 = c^2, we get 25 + 144 = 169 or 13^2.
Therefore the answer is 13.
gwen earns 716.01 in 29 hours. how much will she earn in 23 hours to the nearest cent?
Answer:
She will earn $567.87 in 23 hours
Step-by-step explanation:
Because I found out that for every 1 hour she earns $24.69 ($716.01÷29=$24.69). So, then I multiplied $24.69 by 23 and got $567.87. So, Gwen earns $567.87 in 23 hours
Answer:
567.87$
Step-by-step explanation:
This is the answer because, first you must find how much Gwen makes in an hour, you must find it by dividing 716.01 by 29 to get $24.69. Now in order to find how much Gwen makes, we will multiply 24.69 by 23 to get $567.87
What else is represented or means the same thing as a sum
Answer:
aggregate, total, totality, whole, summation, entirety, full, tally, all, body
Step-by-step explanation:
Answer:
in this topic, students will use ribbon diagrams and / or number lines to represent and solve problems involving addition and subtraction of fractions in word problems. consider this example.
15% discount off of $35.
Original:
Discount:
New price
Plz help
Answer:
It $29.75
Step-by-step explanation:
Answer:
Orignal Price: $35
Discount Price: $29.75
Step-by-step explanation:
The original price is $35 since it says 15% off of $35. To get the discount price you would use the equation 35-15%, which would give you $29.75. Your new price is $29.75.
Hope this is what you were looking for. :D
a teacher wants to create a graph of the students' scores on the final exam and see what the distribution looks like, looking for clusters and gaps in the scores. which type of graph is the most appropriate?
Answer:
A histogram would be the most appropriate graph to display the distribution of scores and identify clusters and gaps.
Step-by-step explanation:
What is the measure, in degrees, of
PLEASE HELP
Answer:
58 degrees
Step-by-step explanation:
Complementary angles add together to 90 degrees
(5x + 8) + (3x + 2) = 90
8x + 10 = 90
x = 10
5(10) + 8 = 58
Find two consecutive even integers whose sum is 26.
Answer:
4k+2 (when k=6)
5k+6 (when k=4)
Step-by-step explanation:
Answer:
14
12
Step-by-step explanation:
Just run through possible even numbers up till 26.
14 + 12 = 26 and they are two consecutive even numbers
Maria needs to wraps the box shown below with no overlap of the wrapping paper. How much wrapping paper does she need?
As each side of the cube has a surface area of 24in².the total amount of wrapping paper needed is 64in².
What is surface area?Surface area is the total area of a three-dimensional object's surface, including the area of its faces and any curved surfaces.
To calculate the amount of wrapping paper needed for the cube, we can use the formula for the surface area of a cube:
SA = 6 x (side)²
In this case, the side of the cube is 2in,
so the SA = 6 x (2in)² = 24in²
To get the amount of wrapping paper needed, we would need to multiply this by 4, as each side of the cube has a surface area of 24in².
Therefore, the total amount of wrapping paper needed is
24in² x 4 = 96in²
To convert this to a square, we would need to divide it by 4, as each side of the square is equal in length.
Therefore, the total amount of wrapping paper needed is
96in² / 4
= 24in x 4
= 64in².
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