Given:
The equation is
[tex]\dfrac{1}{4}x-3=\dfrac{3}{8}x+4[/tex]
To find:
The Louisa's mistake.
Solution:
We have,
[tex]\dfrac{1}{4}x-3=\dfrac{3}{8}x+4[/tex]
[tex]\dfrac{x-12}{4}=\dfrac{3x+32}{8}[/tex]
Multiply both sides by 8.
[tex]2(x-12)=3x+32[/tex]
[tex]2x-24=3x+32[/tex]
[tex]-24-32=3x-2x[/tex]
[tex]-56=x[/tex]
[tex]x=-56[/tex]
Louisa made an error when determining the original solution of x = 56.
Therefore, the correct option is A.
Answer:
Louisa made an error when determining the original solution of x = 56.
Step-by-step explanation:
The screenshot if proof
Please help! will mark brainliest
Answer:
x>3
The answer is B
Given that f(x) = x2 – 3x – 54 and g(x) = x + 6, find (f.g)(x) and
express the result in standard form.
Answer:
You just plug it in
Step-by-step explanation:
Hopefully this helped, if not HMu and I will try to get you a better answer
-Have a great day! :)
A total of 165 people attended the opening night of a school play. Adults were charged $6, and children were charged $2. The total amount of money collected was $618. Which augmented matrix represents the situation?
Answer:
answer is B
or
[ 6 2 | 618 ]
[ 1 1 | 165 ]
Step-by-step explanation:
did the test and got it right
The augmented matrix represents the situation is given as, [tex]\begin{bmatrix}6 & 2 | & 618 \\1 & 1 |& 165 \\\end{bmatrix}[/tex]. Then the correct option is B.
What is the matrix?A matrix is a specific arrangement of items, particularly numbers. A matrix is a row-and-column mathematical structure. The a_{ij} element in a matrix, such as M, refers to the i-th row and j-th column element.
Let x be the number of the adults and y be the number of the children.
Adults were charged $6, and children were charged $2.
The total amount of money collected was $618.
6x + 2y = 618
A total of 165 people attended the opening night of a school play.
x + y = 165
The equation can be written in the form of matrix form. Then
[tex]\begin{bmatrix}6 & 2 | & 618 \\1 & 1 |& 165 \\\end{bmatrix}[/tex]
Then the correct option is B.
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Please help, please briefly explain, (awarded brainliest)
Answer:
A
Step-by-step explanation:
Its basically whatever point(s) meet exactly the on the x axis
Answer:
A
Step-by-step explanation:
when f(x)=0 is when y=0. When y=0 is the x-intercept. There are three x-intercepts because the line crosses the x-axis 3 times, which are -3, -1, and 2.
Eight less than four times a number is less than 56. What are the possible values of that number?
Answer:
x≥-12
{-12,∞}
Step-by-step explanation:
8-4x ≤ 56
-4x≤48
x≥-12
{-12,∞}
what are factors of 55
Answer:
1, 5, 11, 55
These are the factors of 55 because:
1 x 55 = 55.
5 x 11 = 55.
11 x 5 = 55.
55 x 1 = 55.
Hope it helps!
Answer:
55, 1, 11, 5
Step-by-step explanation:
A factor is a number that can be multiplied by another factor to reach a given number. So 11 × 5 is 55 so they are factors of 55. 1 × 55 are also factors of 55.
Hope This Helps :)
Write the equation of the line in Slope Intercept form that passes through the points (2,-5) and (3,-7).
Answer and work down below. Let me know if you have any questions
Which equation represents the data in the table shown?
A) y = -2x
B) y = 2x + 3
C) y = -2x + 3
D) y = -2x - 3
Answer:
C
Step-by-step explanation:
In order to find the slope, you can use rise over run.
(y₂ - y₁) over (x₂ - x₁)
You can use the points (1, 1) and (2, -1). y₂ can be -1 and y₁ can be 1, but you could do either as long as you make x₁ and x₂ from the corresponding points (so y₁ and x₁ are one coordinate pair and y₂ and x₂ are the other). This way, you get -2 as your slope. Then, the table shows that y = 3 when x is 0, so that's your y-intercept, which is how you get +3. Hope this helps!
y = -2x + 3 will be the equation represents the data in the table shown.
What is Linear equation?A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.
Given, A data Set of the value of x and y that represents a linear equation.
From the slope intercept form of a linear equation,
y = mx + b,
where m is the slope
b is the y-intercept
y- intercept is point in line where the value of x will be 0.
From our data set,
y - intercept = b = 3 (since, at x = 0, y is 3)
And Slope, (m) = (y₂ - y₁)/(x₂ - x₁)
in our case,
m = (1-3)/(1-0)(from first two values of data set)
m = -2
Thus,
Equation of line:
y = -2x + 3
Therefore, The equation of line for the given data set will be y = -2x + 3.
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Which expression can be used to find the area of the rectangle shown on the coordinate plane?
5
3
2
4
-5 -2 -
1
2
3
-2
5
6x7
7x7
8x7
8x8
Answer:
8x7Step-by-step explanation:
Size of the rectangle:
7 units by 8 unitsArea
7*8 = 56 sq. units
Two times the quantity of eight times a number plus two is equal to three times the quantity of two times the same
number minus seven.
The value of the number is -9/10.
Let the number be x
Two times the quantity of eight times a number plus two will be written as:
= 2(8 × x) + 2
= 2(8x) + 2 = 16x + 2
Three times the quantity of two times the same number minus 7 will be written as:
= 3(2 × x) - 7
= 3(2x) - 7 = 6x - 7
We will equate both values and this will be:
16x + 2 = 6x - 7
Collect like terms
16x - 6x = -2 - 7
10x = -9
x = -9/10
In conclusion, the value of the number is -9/10.
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Angle P and angle Q are supplementary angles. If the measure of angle Q is 64, find the measure of angle P.
Answer:
soln
angle Q = 64
We know that supplementary angle = 180
Now,
angle P + angle Q = 180
now put the value and solve the equation ok!
Which statement is true about this equation? y=2x+4
Step-by-step explanation:
C. is the right answer
It is a function only.
Answer:
C
Step-by-step explanation:
PLATO
I NEED HELP!!!!! If a person weighs 240 pounds on earth, what would be the difference in weight of the same person on mars and on the moon (based on he table and graph)?
Answer:
I don't know where the table and the graph is but when a person weighs 240 pounds on Earth, they would weigh 90.79 pounds on Mars, 39.68 pounds on the Moon and the difference from the Mars and the Moon would be 51.11 pounds.
Step-by-step explanation:
Hope this Helps:)
Have a good day/night
Answer:
39.68
Step-by-step explanation:
Describe the domain of the relationship shown here
Answer:
Domain: [-2, 2]
Step-by-step explanation:
Domain is the set of x-values that can be inputted into function f(x).
We see that our x-values span from -2 to 2. Both are included in the domain:
[-2, 2] or -2 ≤ x ≤ 2
Answer two questions about Equations
A
AA and
B
BB:
A
.
3
(
x
+
2
)
=
18
B
.
x
+
2
=
6
A.
B.
3(x+2)
x+2
=18
=6
1) How can we get Equation
B
BB from Equation
A
AA?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Add/subtract the same quantity to/from both sides
(Choice B)
B
Add/subtract a quantity to/from only one side
(Choice C)
C
Multiply/divide both sides by the same non-zero constant
(Choice D)
D
Multiply/divide only one side by a non-zero constant
The correct option will be option C: Multiply/divide both sides by the same non-zero constant.
How to solve the linear equation of one variable?Step-1: we have to balance each side by simplifying the equation
Step-2: add/subtract constant term on both sides of the equation to separate variable and constant term on both sides
Step-3: divide the coefficient of the variables on both sides.
So according to the question,
the given equations are:
AAA: 3(x+2)=18
BBB: x+2=6
We have to find a way from equation AAA to Equation BBB
from the above equation, it is clear BBB is factor AAA.
to get BBB from equation AAA, we have to just divide 3 on both sides of the equation AAA.
Therefore option C will be correct as 3 is a non-zero constant. we have to divide both sides by this same non-zero constant.
Therefore The correct option will be option C: Multiply/divide both sides by the same non-zero constant.
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Trey’s class is making a school flag. The design for the flag is a rectangle that is 18 inches by
14 inches. They are planning to sew a ribbon along both diagonals of the flag. How long should the
piece of ribbon be?
Answer:
46 inches
Step-by-step explanation:
2 2 2
18 + 14 = c
324 + 196 = c2
520 = c2
[tex]\sqrt{520[/tex] = c
22.80350850198276
Rounded: 22.8 OR 23
7x + 15 = 2(3x + 8) + X
Answer:There are no solutions
Step-by-step explanation:
Answer:
No solution (or false)
Step-by-step explanation:
First, use the distributive property.
7x + 15 = 6x + 16 + x
Next, combine like terms.
7x + 15 = 7x + 16
Now, get both of the coefficients to the same side by subtracting 7x from both sides.
15 = 16
15 does not equal 16, so the answer to this problem would be no solution
-8-1K=1k-4k
Anybody know the answer
Answer:
k=4
Step-by-step explanation:
hope this helps
Answer:
4
Step-by-step explanation:
An entry level web developer's annual pay is $55,640 based on 52 weeks per year. Due to the economy, his company is having to cut back on the number of weeks that it employs its web developers. If the firm cuts the work year to 49 weeks but keeps the same rate of pay, how much should the web developer expect his annual pay to decrease? Round your answer to the nearest dollar.
Answer:
[tex]Reduction = \$3300[/tex]
Step-by-step explanation:
Given
[tex]Pay\ for\ 52\ weeks = \$55,640[/tex]
Required
Determine the reduction when paid is reduced to 49 weeks
First, we need to determine the weekly pay
[tex]Weekly\ Pay = \frac{\$55,640}{52}[/tex]
[tex]Weekly\ Pay = \$1070[/tex]
Next, is to determine the pay for 49 weeks;
[tex]Pay = Weekly\ Pay * 49[/tex]
[tex]Pay = \$1070 * 49[/tex]
[tex]Pay = \$52430[/tex]
Subtract the 49 week pay from 52 weeks pay to get the payment reduction;
[tex]Reduction = \$55640 - \$52340[/tex]
[tex]Reduction = \$3300[/tex]
Find the greatest common factor of 60 and 60.
please help!!!!
Answer:60
Step-by-step explanation:
Answer:
The greatest common factor of 60 and 60 is 60, because 60 is the highest number that is divisible by both numbers.
Step-by-step explanation:
Hope this helps, and can you please mark me brainliest because I just need 4 more brainliest to become expert
Natalie made a graph showing these ordered pairs representing a proportional relationship.
(0.5, 2), (4, 16), (6.5, 26)
Which ordered pair would be on the same line as Natalie’s ordered pairs?
(3.5, 12)
(2, 4)
(8, 32)
(12, 36)
The answer is 8,32
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
21) A tenth grade class is selling granola bars for a fundraiser. They earn $0.75 for every
granola bar that they sell. They have ordered 300 granola bars for the sale. Write a function
rule to represent the profit P the class earns for each bar b they sell.
Function rule:
How much profit will they earn if they sell all 300 bars?
Answer:
255
Step-by-step explanation:
5. Two trains start from the same station and run in
opposite directions. One runs at an average rate of 40
miles per hour, and the other at 65 miles per hour. In
how many hours will they be 315 miles apart?
Answer:
3 hours
Step-by-step explanation:
40 + 65 = 105
315/105 = 3
The number of hours for both the trains to be at 315 miles apart is 3 hours
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the first train be = A
Let the second train be = B
The average speed of train A = 40 miles per hour
The average speed of train B = 65 miles per hour
Since , the two trains are moving in opposite directions , their speed are added
The total average speed of train A and train B =
( average speed of train A + average speed of train B )
The total average speed of train A and train B = 40 + 65
= 105 miles per hour
Total distance = 315 miles
The equation is
So , the time taken for the two trains to be at 315 miles apart is
Time = Distance / Speed
= 315 / 105
= 3 hours
Hence ,
The number of hours for both the trains to be at 315 miles apart is 3 hours
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What is the domain of the functions below:
y=5x / |x-1|+1
(The / symbol is a fraction)
Answer:
domain is all real numbers
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Answer:
-1
Step-by-step explanation:
Slope is the difference of the y-values divided by the x-value.
[tex]\frac{4-3}{1-2}[/tex]=
[tex]\frac{1}{-1}[/tex]=
-1
Answer:
-1
Step-by-step explanation:
[tex]\frac{4-3}{1-2}=\frac{1}{-1} =-1[/tex]
20. Solve the equation.
6x = 30
Answer:
x=5
Step-by-step explanation
6*5= 30
30/6=5
Find the value of X In 10 X + 2Y = 12 Y + 20
Find the value of 3 ^ 4
Find the value of - ( 10 J + 2 Y )
Find the value of ( 6 X - 3Y ) ( -2 )
Find the value of 4 P ( 8 P - 9 Q)
Find the value of X In 12 X + 3Y + 16 X + 9 Y = 40
Find the value ½ ( 10 x + 20 y )
Find the value 24 abc /12 ab
Answer:
See below
Step-by-step explanation:
Find the value of X In 10 X + 2Y = 12 Y + 20
10x + 2 y = 12y + 2010x = 10y + 20x = y + 2Find the value of 3 ^ 4
3^4 = 3*3*3*3 = 81Find the value of - ( 10 J + 2 Y )
- ( 10j + 2y ) = -10j - 2yFind the value of ( 6 X - 3Y ) ( -2 )
( 6x - 3y ) ( -2 ) = -12x + 6yFind the value of 4 P ( 8 P - 9 Q)
4p ( 8p - 9q) = 32p² - 36pqFind the value of X In 12 X + 3Y + 16 X + 9 Y = 40
12x + 3y + 16x + 9y = 4028x + 12y = 4028x = -12y + 40x = -12/28y + 40/28x = -3/7 y + 10/7Find the value ½ ( 10 x + 20 y )
½ ( 10 x + 20 y ) = 5x + 10yFind the value 24 abc /12 ab
24 abc /12 ab = 24/12*abc/ab = 2cSolve
In (x + 3) = In 10 - In x
Answer:
x = 7
Step-by-step explanation:
(x+3)=10
10 - 3 = 7
(7+3)=10
Answer:
x = 7
Step-by-step explanation:
x + 3 = 10
=> x = 10 - 3
=> x = 7
Complete the following table with the properties used to solve 4(x+3) = 20
Answer:
4(x+3) = 20
Distrbute
4x+12 = 20
-12 from both sides
4x = 8
divide both sides by 4
x = 2
Step-by-step explanation:
slove for the variable
2a-5=5a+23
Answer:
[tex]a = 9 \frac{1}{3} [/tex]
Step-by-step explanation:
[tex]2a - 5 = 5a + 23 \\ 2a - 5a = 23 + 5 \\ - 3a = 28 \\ \frac{ - 3a}{ - 3} = \frac{28}{ - 3} \\ a = 9 \frac{1}{3} [/tex]