Answer:
no solution
Step-by-step explanation:
x=(16-2y)/7
-21*(16-2y)/7-6y=24
-3(16-2y)-6y
-48+6y-6y=24
-48=24
you can't solve for the variables
There is no solution for given system of equations.
System of equations :The given equations are,
[tex]7x+2y=16\\\\x=\frac{16-2y}{7}[/tex]
Another equation is, [tex]-21x-6y=24[/tex]
Substitute value of x in above equation.
[tex]-21(\frac{16-2y}{7} )-6y=24\\\\-48+6y-6y=24\\\\-48\neq 24[/tex]
Thus, there is no solution for given system of equations.
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Evaluate each of the following expressions if x=5, y=6, z=-6
X+3y+z=____
(x-12)+3(y+z)=____
100x+yz=___
Find the height of an equilateral triangle with sides 12 cm long.
Answer:
12cm
Step-by-step explanation:
Since it is an equilateral triangle, meaning that all sides are equal the height is 12 cm.
Anyone know how to do??
Answer:
x = 15°
Step-by-step explanation:
∠2 and ∠4 are same-side interior angles, meaning they add up to 180
2x + 10 + 4x + 80 = 180
Rearrange (collect like terms)
6x = 180 - 80 - 10
6x = 90
x = 15°
Answer:
x = 15Step-by-step explanation:
∠2 = 2x + 10
∠4 = 4x + 80
∠2 and ∠4 are supplementary angles, this mean ∠2 + ∠4 = 180
2x + 10 + 4x + 80 = 180
combine similar terms: 6x = 180 - 80 - 10
simplify: 6x = 90
solve for x = 90 / 6
x = 15
what is an explicit representation for the nth term of the sequence (-1/2, -2 , - 8, -32)
Answer:
sdvsvsdv
Step-by-step explanation:
Answer:
Step-by-step explanation:
It’s B
Help quick The engineers designing the All Aboard Railroad between Boca Raton and Jupiter decide to create parallel tracks through this portion of the railway. To illustrate their plans to the county commission, they use a coordinate plane. The southbound track will have an equation of 2x + 5y = 15. What is the equation of the parallel northbound track that runs through the point (4, – 2)?
A. 2x + 5y = −2
B. 2x − 5y = 18
C. 5x + 2y = 16
D. 5x − 2y = 24
Answer:
Step-by-step explanation:
The answers is A
The required equation of the parallel track that runs through the point (4 , -2) is 2x + 5y = −2.
The engineers designing the All Aboard Railroad between Boca Raton and Jupiter decided to create parallel tracks through this portion of the railway.The southbound track will have an equation of 2x + 5y = 15. What is the equation of the parallel northbound track that runs through the point (4, – 2) TO determine.
The equation is the relationship between variables and represented as y=ax + b is an example of a polynomial equation.
Equation of the southbound track,
2x + 5y = 15
slope of the above equation is m = -2/5
Since the slope of the parallel lines are equal.
The equation of the parallel northbound track that runs through the point (4, – 2),
(y + 2) = -2/5 (x - 4)
5(y + 2) = -2 (x-4)
5y + 10 = - 2x +8
2x + 5y = 8-10
2x + 5y = -2
Thus, the required equation of the parallel track that runs through the point (4 , -2) is 2x + 5y = −2.
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BRAINLEST ANSWER!! please show the steps
4 (2x-7) +4 > -88
Step-by-step explanation:
4(2x-7)+4>-88
4(2x-7)>-92 Subtract 4 from both sides
8x-27>-92 Distributive property
8x>-65 Add 4 to both sides
-8x<65 I call this the negative switch, but it is called something else
x<-8.125
I What are the subsets of dog cat fish
Answer:
Mammals
Step-by-step explanation:
these vertebrates are considered mammals
Answer:
Subsets of {dog, cat, fish} are Ф, {dog}, {cat}, {fish}, {dog, cat}, {dog, fish}, {cat, fish}, {dog, cat, fish}
if that doesn't work do
4 - Practice: Working with Sets Practice
1. D
2. B
3. A
4. C
5. A
6. C
7. C
8. D
9. C
10. B
-cc
hope this helped please mark me brainliest!
Can someone help please?
Answer:
just substitute the numbers for the variable y, and see whichs are greater than or less than 6
Answer:
1
Step-by-step explanation:
13 - 7(-1) = 20 so no
13 - 7(0) = 13 so no
13 - 7(1) = 6 so yes
[is there a 2 there?] 13 - 7(2) = -1 so no
13 - 7(3) = -8 so no
4(2x - 2) + 2 = 4(x - 2)
Answer:
X=-1/2
Step-by-step explanation:
Hope this helps. Plz give brainliest.
Answer:
x = -1/2 or -0.5
Step-by-step explanation:
4(2x - 2) + 2 = 4(x - 2)
open the parenthesis
8x - 8 + 2 = 4x - 8
add 8 to both sides of the equation
8x - 8 + 2 + 8 = 4x - 8 + 8
combine like terms
8x + 2 = 4x
subtract 4x from both sides of the equation
8x - 4x + 2 = 0
4x + 2 = 0
subtract 2 from both sides of the equation
4x + 2 - 2 = 0 -2
4x = -2
divide both sides by 4
4x/4 = -2/4
x = -1/2
what is the greatest common factor shared by 51 and 21
Solve 14m = 98
A. M=7
B. M=112
C. M= 84
D. M=8
Answer:
A) m=7
Step-by-step explanation:
Just divide 98 by 14
Answer:
A is the answer
Step-by-step explanation:
7×14 = 98
four a number, increased by one , is between seven and thirteen .
If you can fit 50 people into one bus, how many buses would you need to transport 940 people? Show your work.
Answer: 19
Step 1: Divide.
940 ÷ 50 = 18.8
Step 2: Round 18.8 to the nearest one.
18.8 - 19
Answer to the question is 19.
Answer:
About 19 buses
Step-by-step explanation:
940/50 = 18.8 ≈ 19
Liam rented a pedal board for 5.5 hours and paid a total of $93.75. What is an equation in point-slope form that
models the cost of renting a pedal board for x hours? How can Liam use the equation to find the one-time service
charge?
Answer: if y is the total cost of the rental, then y-93.75=12.5(x-5.5) models the cost of renting a pedal board for x hours. liam should rewrite the equation from the previous step so that y is isolated on one side. the constant on the other side is then the service fee.
Step-by-step explanation:
yeah that’s all
The point-slope form equation is an equation that has a slope "m" and passes through a point or two points.
The equation to find the one-time service charge is 93.75 = 17.05x + b
The point-slope form equation is written as:
y = mx + b
Where
m = gradient
b = slope of the line
Liam rented a pedalboard for 5.5 hours and paid a total of $93.75.Therefore, the cost of renting a pedalboard for 1 hour
= $93.75/5.5
= $17.05
a) An equation in a point-slope form that models the cost of renting a pedal board for x hours is written as:y = mx + b
Where
y = Total charge = $93.75
m = Cost of renting a pedalboard per hour = $17.05
x = Number of hours for renting a pedal board
Hence, the equation is given as:
93.75 = 17.05x
b)The equation to find the one-time service charge where the service charge is b is given asHence, the equation is given as:
93.75 = 17.05x + b
Where b = service charge
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can you name some of the respectful disagreement skills
Answer: Listen to what the other person has to say, try to see from other perspectives, don't show anger or other person won't listen to what you have to say.
Step-by-step explanation:
Answer:
no sorry
Step-by-step explanation:
find the domain and range of the function represented by the graph.
The slope of this graph is?
Simplify each of the expressions.
Answer:
5y2 + -3y + 2
Step-by-step explanation:
Sorry only have the first one.
During the 2010 Great Backyard Bird Count, an average of
42 bald eagles were counted in each of 20 locations throughout
Alaska. In 2009, an average of 32 bald eagles were counted in
each of 26 locations throughout Alaska. Based on this data, how
many more bald eagles were counted in 2010 than in 2009?
Use the graphic organizer to help you solve the problem.
Answer:
good luck
Step-by-step explanation:
Find the vertex and y-intercept of the quadratic function.
y = - x2 + 4x + 7
Answer:
Vertex: (2, 11)
Y-Intercept: (0, 7)
Step-by-step explanation:
Find the equation of line b described below, in slope-intercept form
Line a is perpendicular to line b
Line a passes through the points (1,-8) and (9,-12)
Line b passes through the point (-8, -16)
The equation of line b is y= ______
Given:
Line a is perpendicular to line b .
Line a passes through the points (1,-8) and (9,-12) .
Line b passes through the point (-8, -16).
To find:
The equation of b.
Solution:
Line a passes through the points (1,-8) and (9,-12) . So, slope of line a is
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m_a=\dfrac{-12-(-8)}{9-1}[/tex]
[tex]m_a=\dfrac{-12+8}{8}[/tex]
[tex]m_a=\dfrac{-4}{8}[/tex]
[tex]m_a=-\dfrac{1}{2}[/tex]
Product of slopes of two perpendicular lines is -1.
[tex]m_a\times a_b=-1[/tex]
[tex]-\dfrac{1}{2}\times a_b=-1[/tex]
[tex]b=2[/tex]
Slope of line b is 2.
If a line passing through a point [tex](x_1,y_1)[/tex] with slope m, then equation of line is
[tex]y-y_1=m(x-x_1)[/tex]
Line b passing through (-8,-16) with slope 2. So, equation of line b is
[tex]y-(-16)=2(x-(-8))[/tex]
[tex]y+16=2(x+8)[/tex]
[tex]y+16=2x+16[/tex]
Subtract 16 from both sides.
[tex]y=2x[/tex]
Therefore, the equation of line b is [tex]y=2x[/tex].
Renting video games from Store S cost $2.50 per game plus a monthly fee of $5. Renting video games from Store T cost $5 per game with no monthly fee. The monthly cost to rent video games depends on the number of video games, v, rented. What inequality represents the situation when the monthly cost of Store S is less than the monthly cost at Store T?
Answer:2.5v+5>5v
Step-by-step explanation:this definitely right
A line passes through the points (3, 5) and (2, 0). What is the slope?
Answer:
y= -4x - 5
Step-by-step explanation:
5 is your y-intercept
The slope of the line which passes through the points (3,5) and (2,0) is 5
From the question,
We are to determine the slope of the line
The slope of a line with two given points can be determined from the formula
[tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]
Where m represents the slope
From the given information
x₁ = 3
y₁ = 5
x₂ = 2
y₂ = 0
Putting these into the formula,
We get
[tex]m = \frac{0-5}{2-3}[/tex]
Then,
[tex]m = \frac{-5}{-1}[/tex]
∴ m = 5
Hence, the slope of the line which passes through the points (3,5) and (2,0) is 5
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Find the slope of the line passing through each of the following pairs of points.
(0, −8), (0, 4)
Answer:
Undefined.
Step-by-step explanation:
[tex]m=\frac{rise}{run}=\frac{4+8}{0-0}=\frac{12}{0}= undefined[/tex]
The slope is undefined.
Hope this helps.
Answer:
Undefined( If this is wrong then it is zero)
Step-by-step explanation:
The formula for this problem is y2 - y1/x2-x1. You can name any of those points 1 or 2 as long as they have the right coordinate.
4 - (-8)/0 - 0= 12/0 = Undefined
A bag of flour weights 5 pounds . There are 420 grams in 1 pound . How many grams of flours are in the bags ?
Answer:
2100
Step-by-step explanation:
Answer:
2100 grams
Step-by-step explanation:
Just multiply 5 with 450.
Line JK passes through points J(–4, –5) and K(–6, 3). If the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b?
–21
–4
11
27
Find the slope that passes between the points.
(y₂ - y₁) / (x₂ - x₁)
J(-4, -5)
K(-6, 3)
(3 - (-5)) / (-6 - (-4))
(3 + 5) / (-6 + 4)
8 / -2
-4
Now slap that slope into the formula and substitute on of the coordinates to the formula to solve for b (I'll take point K's coordinate):
y = mx + b
y = -4x + b
3 = -4(-6) + b
3 = 24 + b
3 - 24 = b
- 21 = b
b = -21
If the equation of the line is written in slope-intercept form, y = mx + b, then the value of b is -21 and is denoted as option A.
What is Slope?This is also referred to as the gradient of a line and measures its steepness and direction.
Slope = (y₂ - y₁) / (x₂ - x₁)
ParametersJ(-4, -5) and K(-6, 3)
= (3 - (-5)) / (-6 - (-4))
= (3 + 5) / (-6 + 4)
= 8 / -2
= -4
Substitute one of the coordinates into the formula to solve for b
y = mx + b
y = -4x + b
3 = -4(-6) + b
3 = 24 + b
3 - 24 = b
b = - 21
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John and Jane went to a bakery to get cookies for a party. Jane bought x cookies that were $3 each. John bought x cookies that were on sale for $1 plus he got a small cake for $10.00. How much did John and Jane each spend, if they spent the same amount of money?
Answer:
They spent $15.
Step-by-step explanation:
It's given that Jane bought x cookies, so 3x.
John spent $1 on each of the x cookies he got, and also an extra $10, so x+10.
3x=x+10
2x=10
x=5
So they got 5 cookies each.
5 cookies x $3= $15 (check with $5(1)+$10= $5+$10= $15 )
Jeremy performs the same operations on 4 values for x. He records each resulting y-value in a table, which equation shows the operation Jeremy performs on x to get to y?
x: 2,4,6,8
y:5,13,21,29
Answers: y= 2x+1 , y= 4x-3 , y= x+3 , y= 3x-1
Answer:
y= 2x+1
Step-by-step explanation:
True of False?
2) A fraction can multiply with another fraction
Answer:
True.
Step-by-step explanation:
Hope this helps!
Answer:
TRUE!!
Step-by-step explanation:
Good luck
Help help help help help help help help help help
I am not really sure, but I can say that I would go with; either B or C. Sorry...