Use these graphs to solve the simultaneous equations 5x-9y = -46
y = -2x
Answers
Answer:
(-2, 4)
Step-by-step explanation:
In the first equation substitute -2x for y, obtaining: 5x - 9(-2x) = -46
Then 5x + 18x = -46, or 23x = -46, resulting in x = -2
Since y = -2x, y = -2(-2) = 4
The solution is (-2, 4)
The value of x coming is -2 and the value of y=4 by plotting the equations 5x-9y=-46 and y=-2x.
What is a equation?
A statement that the values of two mathematical expressions are equal.
How to plot graph of an equation?
First we have to find the values of x and y as we can see in the figure1.
By plotting these points we can make graph of both the equations and the intersection point will be the solution of these equations.
Blue line is the line of the equation 5x-9y=-46 and the green line is the line of the equation y+2x=0
Learn more about equations at https://brainly.com/question/2972832
#SPJ2
Related Questions
For which of the equations below is x = 2 a solution?
A 2 + x = 2
B x - 7 = 5
C 3x = 6
Answers
Answer:
c
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
A= x=0
B= x=12
C= x=2
Alice bought 2 posters for $2.49 each. After a 7% sales tax was added, how much did Alice owe for her posters? PLEASE ANSWER AND DONT WASTE MY POINTS!! WILL MARK BRAINLIST
Answers
Answer:
Alice owed $5.32
Step-by-step explanation:
Answer:$5.34
Step-by-step explanation:
what is the inequality -24<3(3x-2)<30
Answers
Answer:
− 2 < x < 4
Step-by-step explanation:
please help me with the online work !!!!!!!!!!!!!! acellus
Answers
Answer:
240 cm², A = 300 cm², and 540 cm²
Step-by-step explanation:
1) The area of a parallelogram is A = bh, so:
A = (20)(12)
A = 240 cm²
2) Similarly, the area of a rectangle is A = bh, so:
A = (15)(20)
A = 300 cm²
3) The composite area is the sum of both the rectangle's area and the parallelogram's area, so:
240 cm² + A = 300 cm² = 540 cm²
Answer:
P=
20x12=240
R=
20x15=300
240+300
Step-by-step explanation:
what multiplies to -48 and adds to 13
Answers
Answer:
The formula to solve this would be:
X x Y = 13
There are at least two combinations of two numbers that you can multiply together to get 13.
Step-by-step explanation:
2(8s+9)+–2(2s–3)?
answer
now
please
ill
give
branielest
if
correct
Answers
Answer:
[tex]12s+24[/tex]
Step-by-step explanation:
Distribute this and you get [tex]16s + 18 -4s + 6[/tex].
This simplifies to [tex]12s+24[/tex].
What is 1/3 written as a decimal?
Answers
Answer:
0.3
Step-by-step explanation:
Answer:
0.33333. it goes on forever.
Which line is a linear model for the data
Answers
Answer:
The 4th one/last one
Step-by-step explanation:
write a conclusion:
If you study your lesson, then you will pass the
exam.
If you pass the exam, then you will get a good grade.
ASAP
Answers
Answer:
If you study your lesson, you will get a good grade.
Answer:
what do you mean ? make an conclusion
Step-by-step explanation:
7)
60°
x + 83
40°
A) 7
C) -5
B) -11
D) -3
Answers
Answer:
-3
Step-by-step explanation:
Using the Triangle Sum Theorem, we can prove that m<A + m<B + m<C = 180⁰. Looking at the triangle above, it has given us two measurements. We have to find the third measurement. In order to find the third measurement we will use the Triangle Sum Theorem.
m<A + m<B + m<C = 180⁰
x + 83 + 60⁰ + 40⁰ = 180⁰
x + 183⁰ = 180⁰
x + 183⁰ - 183⁰ = 180⁰ - 183⁰
x = -3
Now plug in -3 in the x place.
x + 83
-3 + 83 = 80⁰
Let us make sure that our Triangle Sum Theorem is right.
m<A + m<B + m<C = 180⁰
80⁰ + 60⁰ + 40⁰ = 180⁰
180⁰ = 180⁰
So this makes our answer true. Hope this helps, thank you :) !!
if you drag the blue dot to the midpoint between the black dots. Where you close? What is the exact coordinate of the point ?
Answers
Answer:
(4,1)?
Step-by-step explanation:
WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!! 10 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLZZ HELP
Average Monthly Temperatures Around the World
Similar to changes in elevation, temperature changes are often expressed as sums and differences of positive and negative rational numbers.
Search the Internet for a website that gives the average monthly high and low temperatures (in degrees Celsius) in Nuuk, Greenland, and in Isla Hoste, Chile. Then answer the following questions based on your research. Answers will vary depending on the website you selected. Document the website you used in the Resources section at the end of this activity.
Part A
What are the average high and low temperatures (in degrees Celsius) for Nuuk in January
Part B
What are the average high and low temperatures (in degrees Celsius) for Isla Hoste in August?
Part C
In Nuuk, what is the average net change in temperature, from the high to the low, in January?
Part D
In Isla Hoste, what is the average net change in temperature, from the high to the low, in August?
Part E
Which city experiences a larger absolute change between the high temperature and low temperature, Nuuk in January or Isla Hoste in August?
Part F
On a thermometer, how many times farther below the freezing point of water (0°C) is the January low for Nuuk than the August low for Isla Hoste?
Answers
Answer:
ok it is 100%
Step-by-step explanation:
so dont listen to me i just want to earn point lol
helppp!!!!!!!!!!!!!!!
Answers
Answer:
C. Is trueStep-by-step explanation:
To figure this out, you just need to extend the graph. You can do this by extending the already existing line or find the equation of the line. I found the equation of the line which is y = 0.5x . Now once you have the extended graph, you need to graph the given points.
(25,10)
(10,25)
(20,10)
(15,3)
After graphing these points, check which one is on the line. You would see that the point (20,10) is on the line. Now that you know this, you figure out which answer had this point. The answer that has this point is answer C.
An extended graph can be seen below
Please help if you can!
What is the slope between (2,5) and (0,9)
Answers
An architect uses the scale 1/2 in. = 1 yd. to make his blueprint for a building. If he draws a line segment 4 1/2 inches long, what actual size does it represent?
Answers
Answer:
9 yards
Step-by-step explanation:
4 1/2 inches=9 half inches
1) Ruth works a job where she gets paid $750 per week. Next year her pay will be
increasing by 12% (of what it currently is).
help
Answers
Find the interest on naira 40000.00 for 2 years at 20% per annum compound interest. Please I need the answer ASAP
Answers
Given:
Principal value = 40000
Rate of compounded interest = 20%
Time = 2 years
To find:
The interest.
Solution:
Formula for amount is
[tex]A=P\left(1+\dfrac{r}{100}\right)^t[/tex]
Where, P is principal, r is rate of interest and t is time in years.
Putting the given values, we get
[tex]A=40000\left(1+\dfrac{20}{100}\right)^2[/tex]
[tex]A=40000\left(1+\dfrac{1}{5}\right)^2[/tex]
[tex]A=40000\left(\dfrac{6}{5}\right)^2[/tex]
[tex]A=40000\left(\dfrac{36}{25}\right)[/tex]
[tex]A=57600[/tex]
Now, the formula for interest is
[tex]I=A-P[/tex]
[tex]I=57600-40000[/tex]
[tex]I=17600[/tex]
Therefore, the amount of compound interest is 17,600.
please help will mark brainliest
Answers
Answer: 145.8
Step-by-step explanation: you have to divide 45 and 25 to get 1.8, then you get 81 and you multiply 81 x 1.8 to get your answer.
Identify the vertex: (x-4)^2 + 3
Answers
Answer:
vertex = (4, 3 )
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
y = (x - 4)² + 3 ← is in vertex form
with vertex = (4, 3 )
What is the simplified form of this expression?
(3 - 13x - 7x?) - (5X2 + 12x - 10)
Answers
Answer:
-5x^2-32x+13
Step-by-step explanation:
(3-13x-7x)-(5x^2+12x-10)
3-20x-5x^2-12x+10
-5x^2-32x+13
Answer:
-12x^2-25x+13 is the actual answer on Plato
Step-by-step explanation:
please answer, will be greatful!
Answers
Answer: 160cm^3
Step-by-step explanation:
cuboid volume l*w*h
so im guessing square base l=w so 4x4=16 and height 10x16=160
Answer:
160[tex]cm^{3}[/tex]
Step-by-step explanation:
Length a : 4
width b :4
height c :10
WILL GIVE 13 PIONTS AND MARK BRAINALIST .the area of a triangle of altitude 15 m is 225 sq.m.whatbis the length of its base please show steps clearly
Answers
Answer:
30 cm
Step-by-step explanation:
Area = 225 m^2
1/2bh = 225
b×15 = 225×2
B = 225×2/15
b = 30 cm
I need help!!! Please!!
Could someone give me an explanation an answer??
Answers
Answer:
y= x/4 -9
Step-by-step explanation:
Parallel lines have the same slope, and if we know the line intercepts the y-axis at (0,-9) we can use this for our b-value in slope intercept form.
Given the following rhombus: solve for x (8x + 580 °
Answers
Answer:
X=4
Step-by-step explanation:
90-58=32
32÷8=4
The diagonals are bisected perpendicular so it equals 90. subtract 58 and simplify
Which expression is equivalent to 4(5 − 3)
9 − 3
8x
20 − 12
8 + 1
Answers
-6(-4/7)=
I need for a math assignment please help
Answers
Answer:
The answer is 24/7
Answer:
3.428
Step-by-step explanation:
Systems of equations - can someone please help me
Answers
Answer:
Step-by-step explanation:
The solution is the point where the lines intersect: (-2,-2)
If the distance from A to B is 2 inches, then what is the distance from A to C?
Answers
Answer:
i think ur answer would be 4 inches
Step-by-step explanation:
hope this helps.....
What is 23x33 equal ?????
Answers
Answer:
759
Step-by-step explanation:
try cross multiplication
The letters P-R-O-B-A-B-I-L-I-T-Y are written on a set of cards. You mix the cards thoroughly. Without looking, you draw one letter then you draw another without replacing the first. Find the probability that you will select a P followed by a Y.
P(P, then Y) =
Answers
Answer:
P(P, then Y)=(1/11)(1/10)=1/110
Step-by-step explanation:
The number of letters in probability is 11.
There is 1 P.
The probability of drawing a P on draw 1 is the number of ways of drawing a P, which is 1, divided by the number of ways of drawing any letter, which is 11. Thus:
Probability of drawing a P on the first draw is 1/11.
There are now 10 letters left. There is 1 Y. so
Probability of drawing a Y on the second draw given that you drew a P on the first draw is 1/10.
The probability of drawing a P on the first draw and a Y on the second draw is
(probability of a P on draw 1)(probability of drawing a Y on draw 2, given a P on draw 1)
P(P, then Y)=(1/11)(1/10)=1/110
