Answers
[tex]y=-\dfrac 14 x~~....(i)\\\\x+2y = 4~~...(ii)\\\\\text{Substitute}~~ y= -\dfrac 14 x ~~ \text{in equation (ii):}\\ \\ \\x+2\left(-\dfrac 14 x \right) = 4\\\\\implies 4x -2x = 16~~~~;\left[\text{Multiply both sides by 4} \right]\\\\\implies 2x = 16\\\\\implies x =\dfrac{16}2 \\ \\\implies x =8\\\\\text{Substitute x = 8 in equation (i);}\\\\y= -\dfrac 14 \cdot 8 = -2\\\\\text{Hence,}~ (x,y) = (8,-2)[/tex]
Answer:
[tex]y = - \frac{1 }{4} x \\ [/tex]
[tex]x + 2y = 4 \\ [/tex]
[tex]x + 2( - \frac{1}{4} x) = 4 \\ [/tex]
[tex]x + ( - \frac{2}{4} x) = 4 \\ [/tex]
[tex]x - \frac{1}{2} x = 4 \\ [/tex]
[tex] \frac{2x - 1x}{2} = 4 \\ [/tex]
[tex]2x - x = 8[/tex]
[tex]x = 8[/tex]
[tex]x + 2y = 4 \\ [/tex]
[tex]8 + 2y = 4[/tex]
[tex]2y = 4 - 8[/tex]
[tex]2y = - 4[/tex]
[tex]y = - 2[/tex]
Related Questions
7.
Which equation is correct?
Answers
For every 2 girls in Mr Hegarty's class there is 1 boy. What is the ratio of boys to girls in the class?
Give your answer in its simplest form.
Answers
Answer:
1 : 2
Step-by-step explanation:
1 boy for every 2 girls
1 : 2
Answer:
2:1
Step-by-step explanation:
bc of 2 girls there 1 boy so every 2g there 1b so the ratio is 2:1
Hi! This obviously not a question but if you need help on homework contact me! I can help with the following subjects: Math, English and History
Answers
Answer:
i will
Step-by-step explanation:
thanks
Answer:
dam you cant help me with my subjects
Step-by-step explanation:
o Watch help video
A survey stopped men and women at random to ask them where they purchased
groceries, at a local grocery store or online.
What percent of the people surveyed shop online? Round your answer to the nearest
tenth of a percent.
Answers
Answer: 35.7%
Step-by-step explanation: total number of people surveyed is 84
total number of online choice is 30
Percentage for online is 30/84 × 100/1
35.714%
Simplify: 3(s + 5)
3s + 15
3s + 5
8s
18s
Answers
Answer:
3s + 15
Step-by-step explanation:
Here,
3(s + 5)= 3(s) +3(5)
= 3s+15,,
What does 12 represent on the box plot?
Answers
hope this helps
For triangle xyz , the measures of angles x,y, and Z are known. Which method should be used to start solving triangle xyz?
law of sines
law of cosines
neither law can be used
both laws can be used
Answers
The triangle xyz has three sides and three angles
Neither law can be used to solve the triangle
How to determine the appropriate method?As a general rule, the law of sines states that:
x/sin(X) = y/sin(Y) = z/sin(Z)
As a general rule, the law of cosines states that:
x^2 = y^2 + z^2 - 2yz cos(X)
From the question, we understand that only the angle measures are given.
The sine and the cosine laws above require at least one side length of the triangle in order to solve the triangle
Since the side lengths are not known, then neither of the laws can be used
Read more about laws of cosines and sines at:
https://brainly.com/question/4372174
Which expression is equivalent to
-1 (6x +15) -3?
-
3
А- -2x + 12
B- -2x + 2
С- -2x - 2
D– -2x - 8
Answers
Answer:
D. [tex]-2x-8[/tex]
Step-by-step explanation:
[tex]-\dfrac13(6x+15)-3[/tex]
[tex]=-\dfrac13\cdot6x-\dfrac13 \cdot 15-3[/tex]
[tex]=-\dfrac{6x}{3}-\dfrac{15}{3}-3[/tex]
[tex]=-2x-5-3[/tex]
[tex]=-2x-8[/tex]
Explain two different ways you could determine a fraction between 5/12 and 11/24.
Answers
Answer:
.By taking LCM .
. Taking LCM and multiplying numerator and denominator by 10,100,1000 etc.
please give me brainliest
Solve for x.
7.5x11=4.85
Answers
Answer:
x = .005
Step-by-step explanation:
7.5x (11) = 4.85
7.5x = 4.85/11
7.5x = 0.441
x = 0.441/7.5
x = .005 ans
easy, please help! asap
Answers
Which of these sentences uses an appositive correctly?
A. That ladybug, a very delightful insect, just landed on my bedroom windowsill.
B. That ladybug a very delightful insect, just landed on my bedroom, windowsill.
C. That, ladybug a very delightful insect, just landed on my bedroom windowsill.
D. That ladybug a very delightful insect just landed on my, bedroom, windowsill
Answers
Answer:
The answer is A
Step-by-step explanation:
An appositive is usually used to describe a topic, and usually is near the beginning of a sentence or before or after a noun followed by a comma.
In this case “, a very delightful insect, “ comes after ladybug.
I tried my best to answer this question, thank you have a great day
APPLICATION Analyzing and Interpreting Data
A. If Karen sold 25 salads at $6 each, how many would she need to sell at $5. 50 to make
at least the same amount of total revenue?
Demand, Supply, and
Answers
Answer:
30
Step-by-step explanation:
6 * 25 = 150
150/ 5 = 30
Without using a calculator evaluate 5×(88)²-720 using special algebraic identity
Answers
Answer:
38000
Step-by-step explanation:
=5*(88)^2 -720
=5*7744 -720
=38720-720
=38000
I did it without using calculator
100 PTS PLS HELP
How can this quadrilateral be classified?
Select from the drop-down menus to complete the statements.
This quadrilateral has
Choose...
of parallel sides. Therefore, this quadrilateral is a
Choose...
Answers
This quadrilateral have.
Two pair of opposite sides Sides may not be equalAngle between them is not 90°Its a parallelogram
Answer:
2 pairs of parallel sides
rhombus
Step-by-step explanation:
In geometry, arrows on lines mean that those lines are parallel.
Therefore, as one pair of opposite sides have 1 arrow, and the other pair of opposite sides have 2 arrows, this indicates that each pair of opposite sides are parallel.
Quadrilaterals that have 2 pairs of parallel sides are the rhombus and the parallelogram. A rhombus is a parallelogram that has 4 sides of equal length. As the side lengths of the given shape are equal in length, this quadrilateral is a special type of parallelogram called a rhombus.
What should be added to a⁴+a²+1 to make it a perfect square
Answers
Answer:
[tex]a ^{2} [/tex]
a^4 + a^2 + 1
a^4 + a^2 + x + 1
a^2 ( a^2 + 1) + 1 ( x + 1)
so, here clearly we can see that If wee add a^2 in place of x it would be a perfect square..
Hope it helpz~
What is the slope-intercept form equation of the line that passes through (2, 4) and (4, 10)?
Oy=-3x - 2
Oy = -3x + 2
Oy = 3x + 2
Oy = 3x - 2
help pls my education depends on it
Answers
put u=log^43*t in exponential form
Answers
Answer: B. 43^u = t
log b(x) = y goes to b^y = x and convert it :D hope this helps
Answer:
answer B
Step-by-step explanation:
Kendra is making 1/2 of a recipe. The full recipe calls for 4 1/4 cup of flour. How many cups of flour should Kendra use?
Answers
Then 1/2 = 0.5 recipe = 0.5 x4.25
=2.125
=17/8 cups
Jada bought an iPhone for $1000 in 2019. An iPhone declines about 9% yearly, How much is the iPhone worth in 2022? ROUND YOUR ANSWER TO
THE NEAREST WHOLE NUMBER.
Answers
Answer:
686
Step-by-step explanation:
1-0.09=0.91
1000
((((1000*0.91)*0.91)*0.91)*0.91)
685.74961
rounded to whole number
686
The perimeter of the shaded face of this cube is 12 centimeters. What is the volume of the cube in cubic centimeters?
Answers
Answer:
1728
Step-by-step explanation: L(length) H(height) W(width)
volume = l x w x h
perimeter= L + W + L + W
perimeter = 12 + 12 + 12 + 12
volume = 12 x 12 x 12 because it' s a cube, and all sides are equal
= 1728
(i don't know if it's right though...)
what is the inequality shown
Answers
Answer:
-4 ≤ x ≤ 3
Step-by-step explanation:
Well, we can see that the endpoints land on -4 and 3 and the numbers between -4 and 3 are included. And since the endpoints -4 and 3 have colored dots, they are included as well. Therefore the inequality is -4 ≤ x ≤ 3.
Answer:
-4 ≤ x ≤ 3
Step-by-step explanation:
Because the circles are closed, we know that the inequaily sign will be either "≤" or "≥", meaning that the dotted points are included. Looking at the number line, we can see that the dots lie on points -4 and 3. Because -4 is less than 3, the sign will be a lesser than sign. The line inbetween includes all numbers between -4 and 3.
So, in conclusion, -4 ≤ x ≤ 3 is the inequality shown.
I need the answers asap pls
Answers
Answer:
can you make the pirure a little better
Step-by-step explanation:
WILL GIVE BRANILIST 2 BEST ANSWER
Kira’s office has two printers. The printing rate of printer 1 is shown in the table. The printing rate of printer 2 is shown in the graph
Indicate which proportional relationship, and explain how the other printer needs to change to become proportional.
Answers
The number of pages prints at t=4 minutes is P1=64 pages.
The first coordinate of the graph is (a, b)=(0, 0).
The second coordinate of the graph is (c, d)=(10 min, 250 pages). The expression for the rate of the pages printed by the first printer is,
r1 = p1 - p0 / 4-0
Substitute the given values in the above expression.
r1 = 64 pages - 0 / 4 minutes - 0
= 16 pages / min
b) Printer 1 prints at an exponential rate. Both the x and y values increase by a constant ratio of 2. We can either use a logarithm of the first printer or find a constant number of documents it can print / time to become proportional.
Help please and thank you I will mark you brainiest if you get this correct
Answers
Answer:
It is B which in this case is 1 because "The fisherman plopped the giant sea bass onto the "scale" and smiled when he realized it was his biggest catch ever. So the only defintion that makes sense is B or 1.
Step-by-step explanation:
Please can I have brainliest
At the end of a baseball game, the players were given the choice of having a bottle of water or a box of juice. Of all of the players, 12 chose a bottle of water, which was 3 4 of the total number of players. Write and solve an equation to determine p. the total number of players at the baseball game. Show your work
Answers
Answer:
p=48
Explenation:
Total number of players = p
According to given scenario:
p - 12 = 3/4p
By simplifying
Taking terms with p on left and constants on right
p - 3/4p = 12
By taking LCM for left side to make denominators same
4/4*p -3/4p = 12
(4p -3p)/4 = 12
1p/4 = 12
Multiplying both sides by 4 we get
p = 12 * 4
p = 48
So total number of players is 48
Suppose m and n vary inversely and n=17 when m=-4. A) write an equation that models the variation . B) find n when m =-136
Answers
The equation that models the variation is -4 = k/17.
The value of n when m is -136 is 2.
What is inverse proportion?When two variables vary inversely, as one variable increases, the other variable decreases.
The formula used to represent inverse proportion is:
m = k/n
m = dependent variable n = independent variable k = constant of proportionality-4 = k/17
k = 17 x -4 = -68
-136 = -68/ n
n = -136 /68
n = 2
To learn more about inverse proportion, please check: : https://brainly.com/question/25748643
#SPJ1
hello brainly team I need help
Answers
Answer:
See below ↓↓
Step-by-step explanation:
5.
sin60° = x/16 = 1/2x = 16/2 = 8cos60° = y/16 = √3/2y = 16√3/2 = 8√36.
sin30° = 2/u = 1/2u = 2 x 2 = 4tan30° = 2/v = √3v = 2/√3Find the volume of the cylinder. Use 3.14 for π. Round your answer to the nearest tenth.
Answers
Answer:
409.77 is the answer!
Step-by-step explanation:
3 x 3 x 3.14 x 14.5
pie x r^2 x h = V
Answer:
The volume of the cylinder is 410 ft^3
Step-by-step explanation:
To find the volume, we must know the formula. The formula is, V = π r^2 h. We already know that the diameter is 6ft, so we have to cut that in half to get the radius. 6/2 = 3. The radius is 3ft. Now we can plug in the values.
V = π*3^2*14.5
V = π*9*14.5
V = 409.977841
V = 410.0
Can someone please solve this please.
Answers
Answer:
A≈576.31
Step-by-step explanation:
surface area = bh + L(s1+s2+s3)
surface area = (13*11) + 13 * (10+11+14.87)