PLEASE HELP!! Solve system of equations
I think you use desmos but mine isn’t working
Answers
Answer:
The solution of system of equations is (1 , 5)
Step-by-step explanation:
The first equation is:
3y + 2x = 17
The second equation is:
-x - 4y = -12
3y + 2x = 17 :
For x = 0 , y = 5.67
For x = 1 , y = 5
For x = 2 . y = 4.33
For x = 3 , y = 3.67
For x = 4, y = 3
-x - 4y = -21 :
For x = 0 , y = 5.25
For x = 1 , y = 5
For x = 2 . y = 4.75
For x = 3 , y = 4.5
For x = 4, y = 4.25
Solve the system of Equations:
3y + 2x = 17 ⇒ a
-x - 4y = -21 ⇒ b
Multiply equation b by -1:
x + 4y = 21
Rearrange:
x = 21 - 4y
Substitute x into equation a:
3y + 2(21-4y) = 17
3y + 42 - 8y = 17
-5y = 17 - 42
-5y = -25
y = 5
Substitute y in equation b:
-x - 4(5) = -21
-x -20 = -21
-x = -21+20
-x = -1
x = 1
Related Questions
whats the answer???
Answers
Answer:
60
Step-by-step explanation:
Central Angle = Intercepted Arc
The central angle is 60 so the intercepted arc is 60
Answer:
the answer is 60. It says at r and s 60 degrees. so that is the answer
Step-by-step explanation:
A system of linear equations is shown below, where A and B are real numbers. 3x + 4y = A Bx – 6y = 15 What values could A and B be for this system to have no solutions? A = 6, B = –4.5 A = –10, B = –4.5 A = –6, B = –3 A = 10, B = –3
Answers
Answer:A=6 B=-4.5
Step-by-step explanation:
We want to find the values of A and B such that the given system of equations has no solutions. We will find that the values of A and B can be:
B = -4.5
A = 6
When a system of equations has no solutions?
A system of linear equations has no solutions when the lines are parallel (so the lines never do intercept).
Here the system is:
3x + 4y = A
Bx – 6y = 15
Remember that two lines are parallel if and only if they have the same slope and different y-intercept, then let's write both equations in the slope-intercept form:
y = A/4 - (3/4)*x
y = -15/6 + (B/6)*x
So we must have:
B/6 = -3/4
A/4 ≠ -15/6
From the first one we get:
B = (-3/4)*6 = -4.5
From the second one we get:
A ≠ (-15/6)*4 = -10
Then from the given pairs, the only one that causes the system to have no solutions is:
B = -4.5
A = 6
If you want to learn more about systems of equations, you can read:
https://brainly.com/question/13729904
HELPPPPP plsssss 3|2x+5|=9x-6
Answers
Answer:
[tex]3 |2x + 5| = 9x - 6 \\ \\ 6x + 15 = 9x - 6 \\ \\ 6x - 9x = - 15 - 6 \\ \\ - 3x = - 21 \\ \\ x = \frac{21}{3} \\ \\ x = 7 \\ \\ [/tex]
Can someone help please simply answer only
Answers
Answer:
2nd option
Step-by-step explanation:
there is no need to make a like of best fit because the x axis is already acting as one.
What is the equation, in slope-intercept form, of the line that is perpendicular to the line
=} (x-6) and passes through tho point (-2,-2)?
y-4=
y=-3x - 19
y=-x+ 10
y = fx-1
y = 2 x + 1
Answers
Answer: y=-x+ 10
Step-by-step explanation:
Carol Byrd gets a student rate of $30.00 a month. There is a $200 deductible; but no coinsurance payment. She
recently received treatment for a covered condition. The bill was $2,050.00. Carol's insurance company provided
payment of 80% of the bill less the deductible.
What was the company's payment?
What was Carol's total cost (ignoring the monthly premium)?
Answers
Answer:
$160
Step-by-step explanation:
100/100 = 100 ÷ 100 = 100% = 1. Multiply a number by the fraction 100/100
The percentage is calculated by dividing the required value by the total value and multiplying by 100.
The company payment is $1440.
Carol's total cost is $610.
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
Cost of the bill = $2,050
Company payment = 80% of the bill less the deductible
This means,
80/100 x 2,050 = 1640
Company payment.
= 1640 - 200
= $1440
Now,
Carol's total cost.
= 2,050 - 1440
= $610
Thus,
The company payment is $1440.
Carol's total cost is $610.
Learn more about percentages here:
https://brainly.com/question/11403063
#SPJ2
Someone please help
Answers
Answer:
A
Step-by-step explanation:
The 3D shape of the 5 cubes put to a 2D-plane will be representing the diagram A.
Answer: A
Step-by-step explanation:
This is because Option A has 5 cubes, as well as the model above which also has 5 cubes. When you change the angle of the way you are looking at Option A it will be similar to the plan above
Which statement is true about the effects of the transformations on the graph of function f to obtain the graph of function g. g(x) = f(x − 3) + 4
Answers
Answer:
The correct option is D
D) The graph of function f(x) is shifted right 3 units and up 4 units
Step-by-step explanation:
Lets the function be y = f(x)
To shift the graph 3 units to the right, we add -3 to the x term of the function:
Function becomes y' = f(x-3)
Then to shift the graph up by 4 units, we add -4 to the y term of the function:
Function becomes:
y - 4 = f(x-3)
y = f(x-3) +4
g(x) = f(x-3) +4
Hence the correct option is D, as the graph is shifted to the right by 3 units and also shifted up by 4 units
Answer: The correct answer is D. The graph of function f is shifted RIGHT 3 units and up 4
Step-by-step explanation:
Cities A & B are 5 inches apart on a map. Cities C&D are 4 inches apart. If C & D are 900 miles apart, how many miles apart are cities A and B?
Answers
Find a unit rate in the real world and add it to the discussion. You may add a picture or explain your unit
rate. Do not submit one someone else has already added. Week Two
Answers
Answer:
One bag of pretzels costs three dollars. Five bags of
pretzels costs $10. Which has the lower unit price?
You score 84 points in six games. How much do you score per
game?
It costs $3.99 for 25 fl. oz. of detergent or $6.99 for 90 fl. oz. Which
is a better buy?
Steve drives 78 miles on 3 gallons of gas. Find the miles per gallon.
Maria walks 12 miles in 3 hours. How many miles does she walk per
hour?
Do you have to solve it?
I need help please!!!
Which of the following is the equation of a line in slope- intercept form fo a line with slope =2/3 and y-intercept at (0,-2)? A. y= -3/2x -2 B. y=-2/3x +2/3 C. y= -2x - 2/3 D. y= 2/3x -2
Answers
Answer:D
Step-by-step explanation:
[tex]2 3/5 × 3 1/3[/tex]
Answers
Answer:
26/3
Step-by-step explanation:
2 3/5 × 3 1/3
Change to improper fractions.
13/5 × 10/3
Multiply both fractions.
130/15
Simplify.
26/3
13. Solve this equation for A: A/2=4
O A. 2
OB.4
C.6
D. 8
Answers
Step-by-step explanation:
A/2 = 4
A = 4 x 2
A = 8
I think this should be the answer
what is 3 × 8000283743729.
Answers
Dear user,
3 × 8000283743729 = 2.4000851
Answer:
24000851231187
hope this helps!
Pls mark as brainliest!
What is the value of the expression shown below 10+(2x3)^2 divided by 4x (1/2)^3
Answers
Answer:
10 + (2 x 3)^2 / 4 x (1/2) ^3
First do the parentheses
2 x 3 = 6
1 / 2 = 0.5
We are left with
10 + 6^2 /4 x 0.5^3
Do exponents
6 x 6 = 36
0.5 x 0.5 x 0.5 = 0.125
10 + 36 / 4 x 0.125
Divide by 4 and multiply by 0.125
36 / 4 = 9
9 x 0.125 = 1.125
We are left with
10 + 1.125 = 11.125
The answer is 11.125
Step-by-step explanation:
The sum of three numbers is 62. The second number is equal to the first number diminished by 4. The third number is four times the first. What are the numbers? Which three expressions could be used to represent the numbers?
A n; n - 4; 4n
B n; 4 - n; n + 4
C n; n/4; n + 4
Answers
Answer:
38
Step-by-step explanation:
38 because
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. Find the solution set. The solution set for -p2 − 11p = 0 is { }. (Separate the solutions with a comma.)
Answers
Answer:
34.55/6.28=0
Step-by-step explanation:
Points O, A, B lie on a line. OA = 12 cm and OB = 9 cm. Find the distance between the midpoints of segments
OA
and
OB
in each case.
a
Point O lies on segment
AB
.
Answers
Answer:
10.5
Step-by-step explanation:
Let E be the midpoint of OA and F be the midpoint of OB.
If point O is placed between A and B, then points E and F are placed on different sides from O. The segment OE has length 12÷2=6 cm and segment OF has length 9÷2=4.5 cm. Than EF=6+4.5=10.5 cm.
If point O is placed outside the segment AB, then point B is closer to point O than point A, because OA>OB. Since OE=6 cm and OF=4.5 cm, EF=6-4.5=1.5 cm.
If the order of points is A, O, B, then the midpoints of AO and OB will be separated by half the length of AB: (12 cm + 9 cm)/2 = 10.5 cm.
please mark me brainliest :)
Answer:
10.5 cm
Step-by-step explanation:
Which value is equivalent to cos 10°?
sin 30°
O sin 25°
O sin 70°
O sin 80°
Answers
Answer:
13
Step-by-step explanation:
explanation
line. Fill in the
(4) All linear equations have a graph that forms a
blank.
O
parabola
O
V-shaped
O
straight
O zig zag
Answers
Answer:
Straight
Step-by-step explanation:
Linear equations in the form of y = mx + b are always straight. Parabolas are quadratic equations of y = a(x-h)² + k and have a curve. V shaped are formed by absolute values y = a|x-h| + k.
A group of fitness club members lose a combined toltal of 28 kilograms in 1week. There are approximately 2.2 pounds in 1 kilograms. Assuming the weight loss happened at a constant rate about pounds did the group lose each day?
Answers
Answer:8.8
Step-by-step explanation:
2.2*28=61.6
61.6/7=8.8
Pls Mark me as Brainliest
Which best describes the range of the function f(x) = { 0)* after it has been reflected over the x-axis?
all real numbers
all real numbers less than 0
all real numbers greater than 0
all real numbers less than or equal to 0
Answers
Answer:
all real numbers less than 0
Step-by-step explanation:
In the picture attached, the question is shown.
The function described is an exponential decay with the form:
y = ab^x
where a = 2 and b = 1/4
The range of an exponential decay function is all real numbers greater than 0. This means that after f(x) has been reflected over the x-axis its range is all real numbers less than 0.
Which of the following equations describe the line shown below? Check all that apply!
Answers
Answer:
C and E
Step-by-step explanation:
Use the slope formula to first find the slope of the line.
The slope formula is y₂₋y₁ / x₂₋x₁ where (x₁ , y₁) is a point on the graph and (x₂ , y₂) is the other point on the graph. Substituting the values into the slope formula will give you 2 as the slope.
Now use the point-slope formula to find the correct answers.
Point-slope form is y₋y₁ = m(x₋x₁) where y₁ and x₁ are a point on the graph and m is the slope. Substitute both points into the formula (separately) to get C and E as your answers.
Pls help with is geometry will like and will give Brainlyist if it will let me pls help
Answers
Answer:
I believe the answer would be CD is less than DB which is less than BC
Step-by-step explanation:
I derived this answer by looking at the angle degrees. Typically, the larger the angle, the larger the side.
Cd is less than Db
I NEED HELP PLEASE
Select all the correct answers.
Which equations have infinitely many solutions?
Answers
Answer:
B and D
Step-by-step explanation: i used my brain
Answer:
B and D
Step-by-step explanation:
Kip is going to meet his family.
Predict the number of kilometers that will
remain after 7 hours.
The table shows the number of
kilometers he needs to travel until he
reaches them.
Enter the correct answer.
DONE
Hour
1
2
3
4
5
6
7
Kilometers
196
166
136
106
76
46
?
Answers
Answer: 16 kilometres
Step-by-step explanation: Every hour, the distance left is decreased by 30. So, 46-30= 16.
what is the area of the triangle below?
Answers
All you have to do is base times height and divide by 2
A=bh/2
A=17(8)/2
A=136/2
A= 68
Sara leaves home at 7 A.M. traveling at a rate of 45 mph. Her son discovers that she has forgotten her briefcase and starts out to overtake her. Her son leaves at 7:30A.M. traveling at a rate of 55 mph. At what time will he overtake his mother?
Answers
Answer:
B I think
Step-by-step explanation:
Answer:
Dude, there is no option?
Step-by-step explanation:
() = √2-5
f(1) == ?
all positive real
numbers and
>
all real number greater
than or equal to 5
all real numbers
all real numbers
except 8
Answers
Answer:
Step-by-step explanation:
1). f(z) = [tex]\sqrt{z-5}[/tex]
The given function 'f' is defined for (z - 5) ≥ 0
z ≥ 5
Therefore, domain of the function will be [5, ∞)
Or "All real numbers greater than or equal to 5"
2). [tex]f(z)=\frac{1}{z-8}[/tex]
Domain: "All real numbers except 8."
Since the given function is not defined for z = 8
3). f(z) = [tex]\sqrt{z}[/tex]
The given function is defined for every real numbers greater and equal to zero.
Domain: "All positive real numbers and 0"
4). f(x) = 8x
This function is defined for all real numbers.
"Domain: All real numbers"
Jackie goes to the mall every weekend with her friends. Last week, the group spent $28.00 on 2 salads and 4 fruit smoothies. This week, the group spent $38.00 on 3 salads and 5 fruit smoothies. Let x represent the cost of a salad and let y represent the cost of a smoothie. 2x + 4y = 28 3x + 5y = 38 If you multiply the first equation by –3, what could you multiply the second equation by to eliminate the x-variable when adding the equations? What is the cost of a salad? What is the cost of a smoothie?
Answers
Answer:
Salad(x)=6, smoothie(y)=4
Step-by-step explanation:
Salad=x
Smoothie=y
2x+4y=28 (1)
3x+5y=38 (2)
To eliminate the x- variable ,equ(1) is multiplied by -3 and equ(2) is multiplied by 2
-6x-12y=-84 (3)
6x+10y=76 (4)
Add equ (3) and (4)
-2y=-8
y=-8/-2
y=4
Substitute y=4 into equ(1)
2x+4y=28
2x+4(4)=28
2x+16=28
2x=28-16
2x=12
x=12/2
=6
x=6, y=4
Answer:
when adding equations: 2
salads: $6
smooties: $4
Step-by-step explanation:
just did it
hope this helps :)