The value of 'k' for the given system of equation that coincides is 4
k=4
Given :
System of equations
[tex]2x+y=40 \\kx+2y=80[/tex]
The given equation is in the form of ax+by=c
When the two lines coincides then
[tex]\frac{a_1}{a_2} =\frac{b_1}{b_2} =\frac{c_1}{c_2}[/tex]
Lets make the coefficients proportional to each other and then solve for k
[tex]\frac{2}{k} =\frac{1}{2} =\frac{40}{80} \\\frac{2}{k} =\frac{1}{2} =\frac{1}{2} \\\\\frac{2}{k} =\frac{1}{2} \\4=k\\k=4[/tex]
The value of k from the given system of equation is 4
When the line coincides then the value of k is 4
Learn more : brainly.com/question/24022234
Find the measure of
Answer:
4
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
ok we know there's 180 we have 110 and 30 which = 140 so 180-140=40
12y+15=24-6y ??????????????????
Answer:y=1/2
Step-by-step explanation:
A store buys for 12$ each and marks up the price 25% what's is the price for a shirt at the store?
Answer:
$15
Step-by-step explanation:
25% of 12 is 3 so just add that to the original value
Answer:
$15
Step-by-step explanation:
Multiply the cost by the percentage mark up
12 × 25%
Convert the percentage into a decimal
12 × 0.25
3
Add the mark up to the original price
12 + 3
15
How many buckets have one full gallon of water?
Answer:
four just count the circles above the one
I need help with this and fast
Answer: x = -100. For you Id say the second one
Step-by-step explanation: multiply both sides, multiply reduce, and multiply.
Question 25. A segment of a circle is the portion formed by the sector and 4 points
a triangle,
True
O False
Answer:
It is false
Step-by-step explanation:
Complete the function table.
Answer:
18
Step-by-step explanation:
8+10=18
hope this helps :)
Answer:
18
Step-by-step explanation:
10+8=18.
Add: 7 radical 8+ radical 50
Answer:
65
Step-by-step explanation:
How can you prove the triangles congruent below given the following
information. Given: segment PN and segment KQ bisect each other.
Answer:
i think is sas......i hope im not wrong
4. Halla el valor de x. *
(4 puntos
x + 15x + 24 = -21 - 4x
Answer:
x= -9/4
Step-by-step explanation:
1) Isolate X
2) This will give you x+15x+4x=-21-24
(moving terms to another side will make it opposite, in this case positive 24 moving to the right will become negative 24)
3) Add the like terms
x+15x+4x = 20x
-21-24= -45
this will give you 20x=-45
4)Find the value of X by moving the 20 multiplier to the other side (this will become the opposite, division of 20)
x= -45/20
5) Simplify your answer
= -9/4
One of Emma's rabbits is chosen at random write down the probability that this rabbits is a female with short hair
Answer:
1/total number of rabbit in terms of gender and hair size
Step-by-step explanation: Snap Add?
Sample size is required to answer
1/total number of rabbit in terms of gender and hair size
I need help on 7 and 8!!!!!Find the diameter of each circle. Use a calculator’s value of Pi. Round your answer to the nearest tenth.
Answer:
37.6 in
48.2 yd
Step-by-step explanation:
The are of a circle is given as :
Area = pi(d²) /4
Area = 1110.4in²
1110.4 = 3. 14 * d² / 4
1110.4 * 4 = 3.14 * d²
4441.6 = 3.14d²
d² = 4441.6 /3.14
d² = 1413.8051
d = 37.600
d = 37.6
8.)
Area, A = 1824.7yd²
1824.7 = 3. 14 * d² / 4
1824.7 * 4 = 3.14d²
7298.8 = 3.14d²
d² = 7298.8 / 3.14
d² = 2323.2801
d = sqrt(2323.2801)
d = 48.200
Hence, diameter = 48.2 yd
2. Find the value of n.
117°
3nº
Answer:
n = 39
Step-by-step explanation:
The base angles are congruent, that is
3n = 117 ( divide both sides by 3 )
n = 39
A frequency distribution is a way to describe categorical data categorically.
O A. True
O B. False
Answer:
Its true
Step-by-step explanation:
make sure too look at the question you have and if its the same one, so if my answer was wrong for you then its because ur question was different from this one.
whats the difference -19-32
Answer:
-51
Step-by-step explanation: Add both of the numbers as if they were positive. Then after you get the sum add a negative sign to it.
please help fast
8 Rotate the point (-3,-4) around the origin 180 degrees. State the image of the point.
A (-4,-3)
B (-4,3)
C (4, -3)
D (3, 4)
Answer: D (3,4) trust and believe
brainlyst pls I think I spelt is wrong
Step-by-step explanation:
When a line or shape or point is rotated, it must be rotated around a point.
The image of the point is D. (3,4)
The point is given as:
[tex]\mathbf{(x,y) = (-3,-4)}[/tex]
A 180-degree rotation across the origin is represented as:
[tex]\mathbf{(x,y) \to (-x,-y)}[/tex]
Substitute values for the coordinates of the point (x,y)
[tex]\mathbf{(-3,-4) \to (-(-3),-(-4))}[/tex]
Simplify
[tex]\mathbf{(-3,-4) \to (3,4)}[/tex]
Hence, the image of the point is D. (3,4)
Read more about rotations at:
https://brainly.com/question/15356082
The shaded section of the strip diagram represents the percent of the number of students that get more than 9 hours of sleep each night. Of the students surveyed, 80 get more than 9 hours of sleep each night. How many students were surveyed?
Answer:
200
Step-by-step explanation:
each square=40
Nate starts a lawn-mowing business. In his business, he has expenses and revenue. Nate's expenses are the cost of the lawn mower and gas, and his revenue is $25 per lawn
The question is incomplete. The complete question is :
Nate starts a lawn-mowing business. In his business, he has expenses and revenue. Nate's expenses are the cost of the lawn mower and gas, and his revenue is $25 per lawn. At what point will Nate's revenue exceed his expense?
Cost of lawn mower = $ 200
Cost of gasoline = $ 2 per lawn
Solution :
Given :
Cost of the lawn mower = $ 200
The cost of gasoline expense for one lawn = $ 2
The revenue generated for one lawn = $ 25
So let the number of lawn to be mowed = x
Therefore the total expenses = [tex]$200+2x$[/tex]
So, the total revenue = [tex]$25x$[/tex]
The point for which the revenue will exceed the total expenditure will be :
[tex]$25x \geq 200+2x$[/tex]
So at [tex]x=9, \ 225 > 218[/tex]
Thus the revenue exceeds the total expenditure after mowing 9 number of lawns.
Answer:
For part a and b of this question
Step-by-step explanation:
x= # of lawns cut y= total cost
revenue: y=25x
cost: y= -2x-200
He earns 25 per lawn, but loses $200 for his lawnmower and $2 per lawn.
b. y=25x y=-2x-200 y=25x
y=-2x-200 25x=-2x-200 y=25(-7.40)
27x= -200 y=-185
x=-7.40
I believe this is correct.
Does anybody know this answer
Answer:
its 90
Step-by-step explanation:
beacuse it is
Answer:
Step-by-step explanation:
Area of sphere is:
[tex]4\pi r^2[/tex]
So, we would have:
[tex]4\pi12^2=4\pi144=452.16\cdot4=\boxed{1808.64}[/tex]
Hope this helps.
Molly needs 2.5 yards of fabric to make a blanket. She has
different patterns that contain 2.5 feet of fabric. One yard is
equivalent to 3 feet. How many blankets can she make with
the given material?
Answer:
0 Blankets
Step-by-step explanation:
2.5 yards is 7.5ft, and Molly only has 2.5ft, so she can not make a blanket.
Which is bigger .24 or .71
Answer:
.71
Step-by-step explanation:
Choose the option that properly uses the distributive property for the following expression.
-1/3(6x+2)
A: 6x-2/3
B: 2x+2/3
C: -2x-2/3
D: -2x+2
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{-\dfrac{1}{3}(6x + 2)}\\\\\\\mathsf{DISTRIBUTE \ (-\dfrac{1}{3})\ within\ the\ PARENTHESES}\\\\\\\mathsf{= -\dfrac{1}{3}(6x)+-\dfrac{1}{3}(2)}\\\\\\\mathsf{-\dfrac{1}{3}(6x)=-2x}\\\\\\\mathsf{-\dfrac{1}{3}(2) = \dfrac{-2}{3}}\\\\\\\mathsf{= -2x + - \dfrac{-2}{3}}[/tex]
[tex]\boxed{\boxed{\mathsf{Answer: \bf -2x - \dfrac{2}{3}\ (Option\ C.)}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
A system of equations can be 2 equations that have the same variables. (TRUE or FALSE)
Answer:true
Step-by-step explanation: trust me
Can you guys help me plz
Answer:
Step-by-step explanation:
The scale factor is 2
Which graph represents the inequality?
n < -2
Graph A
Graph B
Graph C
Graph D
Rahim bought a car for ₹ 4, 35,000, spent ₹ 55,000 on repairs and sold it for ₹ 5, 50,000. What is his profit?
Please answer and thank you
Introduction please
Answer:
Hello! I am a Percy Jackson fan.
60,000
Step-by-step explanation:
This is because 435000 + 55000 = 490000.
Then, subtract that from 550000.
hi guys can you answer my math question 7 and 8
Answer:
7) 2
6
Because there are 2 plain white T-shirt and 4 other T-shirt . So , total T-shirt are 2 + 4 = 6
I don't know the correct answer of 8
I hope it will help you
plz mark me as brainliest
plz thank my answer
Which of the following relations represents a function
((4,2), (8, 16), (7.9), (13,16)
((1, 2), (1,3), (1,4), (1,5)}
(0, 3), (4, 6), (7, 13), (4.9))
Answer:
The first set
) Evaluate the expression for v = 2.
5v + 3 =
Answer:
13
Step-by-step explanation:
Evaluate the expression for v = 2.
First, plug in 2 wherever v is seen.
5v + 3
5(2) + 3
Next, multiply.
5(2) + 3
10 + 3
Add.
10 + 3
13
Your final answer is 13.
Please let me know if there are any issues with this answer.
Answer:
i think this is algebra
Step-by-step explanation:
The first thing you have to do is open the multiplication parenthesis to substitute V for 2
5v + 3
5 (2) + 3
Now that you have the parenthesis, you multiply and then the result that you add.
5(2) or 5x2= 10 but is better with parenthesis.
10 + 3
=3
I hope this helps.
A pair of sneakers cost $40 and there is a 30% markup rate. Find the selling price of the sneakers
Answer:
52 dollars
Step-by-step explanation:
40 times 1.3= 52