Solve each system by substitution. y = -4x - 18 y = -3x - 13
Answers
Answer:
x=5 and y=2
Step-by-step explanation:
hope it will enough to explain u .... if anything extra needed then ask me in comment section
Related Questions
What is the slope of the line?
Please help thank you
Answers
Answer:
3
Step-by-step explanation:
basically slope determined from a graph like this can be solved by counting. the formula you need to use is rise/run. choose one of the orange points on the line and then count how many spaces up the next dot is. once we have our number (3), you can count how many spaces over the dot is to the right (1) this leaves you with the fraction 3/1 or 3.
also if the dot is to the left it means the slope is negative. so if the dot is 3 up and 1 to the left the slope would be -3
if you copied b4 to a2 what would be the resulting cell reference in a2?
Answers
Answer:
how can I answer this?
Step-by-step explanation:
bro I have nothing to go off of come on
Work out the sum of the interior angles of this irregular hexagon.
Does anyone know ?
Answers
(6-2)180
(4)180
720 degrees!
The sum of the interior angles of this irregular hexagon is 720
How to determine the sum of the angles?The sum of the interior angles of a polygon is:
Sum = 180 *(n - 2)
A hexagon has 6 sides.
So, we have:
Sum = 180 *(4 - 2)
Evaluate
Sum = 720
Hence, the sum of the interior angles of this irregular hexagon is 720
Read more about polygons at:
https://brainly.com/question/1592456
#SPJ2
Need help answering.
Answers
Answer:
The answer is C
Step-by-step explanation:
daniel took 24 photos at the zoo. 3/8 of the photos were giraffes. how many of daniels photos are giraffe
Answers
Answer:
9
Step-by-step explanation:
3/8 of 24 is 9
A Ferris wheel travels in a circular motion and measures 40 meters from the top car to the bottom car. What is the length of the diameter of the Ferris wheel? A car travels one time around the Ferris wheel. How many meters did the car travel? WILL GIVE BRAINLIEST
Answers
Answer:
20 m
Step-by-step explanation:
the distance from the top car to the bottom car is equal to the diameter of the wheel. The diameter is 40 m, and that is twice the radius. The radius of the Ferris wheel is (40 m)/2 = 20 m.
2(x+5)+6x = 8x+10 One Solution No Solution Many Solutions
Answers
Step-by-step explanation:
2(x + 5) + 6x = 8x + 10
2x + 10 + 6x = 8x + 10
8x + 10 = 8x + 10
Since this equality is true for any real values of x, there are infinitely many solutions for x.
The best answer here is "Many Solutions".
Answer:
Step-by-step explanation:
here you go mate
step 1
2(x+5)+6x = 8x+10 equation
step 2
2(x+5)+6x = 8x+10 simplify
2x+10+6x=8x+10
step 3
2x+10+6x=8x+10 combine terms
8x+10=8x+10
step 4
8x+10=8x+10 subtract 8x
10=10
step 5
10-10=10-10 subtract -10 from both side
0=0
answer
All real numbers
mind if i get brainliest
Help answer fast 15points
Answers
Answer:
22 hours
Step-by-step explanation:
he earns $8 per hour, 176 hours/$8 = 22 hours
Answer:
i could be wrong but i have to say 22 sorry if im wrong ;c
Step-by-step explanation:
Solve the equation by using square roots. n2-4=77
Answers
Answer:
n=40.5
Step-by-step explanation:
Simplify the expression: 2( x^3 - 3x^2 + 5x - 7 )
A. 2x^3 + 6x^2 + 10x + 14
B. 2x^3 - 6x^2 + 10x + 14
C. 2x^3 + 6x^2 + 10x - 14
D. 2x^3 + 6x^2 + 10x - 14
Answers
Answer: =2x^3−6x^2+10x−14
i dont know what choice that is but thats the correct answer
Step-by-step explanation:
Write each rational number as a fraction for me PLEASEEEEE! 10 points
Answers
Answer:
Please check step by step explanation
Step-by-step explanation:
Here, we want to write each as a fraction
We proceed as follows;
a. -3/8 = -3/8
b. -5 = -5/1
c -51/4 = -21/4
d. -1.6 = -16/10 = -8/5
e. 8.03 = 803/100
f. 0.4 = 4/10
-x-1=-11 pls help explain
Answers
Answer:
−x−1+1=−11+1
−x=−10
-x/-1 = -10/-1
x=10
Step-by-step explanation:
Let's solve your equation step-by-step.
Step 1: Add 1 to both sides.
Step 2: Divide both sides by -1.
daniel rode on his bike 45 miles in 3 hours how far did he go in 1 hour
Answers
Answer:
15 miles
Step-by-step explanation:
45 / 3 = 15
A landscaper needs to fill a path measuring 2 feet by 6 feet with patio stones. The patio stones are each 1 foot by 2 feet, so the landscaper calculates that she will need 6 of them. Before arranging the patio stones, the landscaper wants to look at all of her options. She cannot cut or overlap the stones, and they all must fit inside the path area without any gaps. Two possible arrangements of the stones are shown below. How many different arrangements are there in total?
Answers
Answer: 13
Step-by-step explanation:
(Multiple choice)
Can I please have some help with this question, I will reward most Brainly to who ever gets it correct.
Answers
Answer:
Option c
Step-by-step explanation:
y-intercept is the point where the line crosses y axis. It is also his monthly savings
Find AE
Note: Figure is not to scale
(Graded)
Answers
Answer: i think its 82 but im not sure
Step-by-step explanation:
A weather forecaster reported that the total amount of rainfall for the month was 0.95 inch. He also reported that this amount was 0.35 inch below the average amount of rainfall for the same month during the last ten years. The forecaster summarized his findings in this table. What was the average amount of rainfall, in inches, for this month during the last ten years
Answers
Answer:
1.3 Inches
Step-by-step explanation:
x = average amt of rainfall in the last 10 years
0.95 = x - 0.35
0.95 + 0.35 = 1.3
Answer: 1.3 Inches
if a triangle has a area of 42 cm^2 and a base of 8 cm, what is the height?
show work plsssss
Answers
Answer:
The height would be 10.5 cm
Answer:
hb=10.5cm
Step-by-step explanation:
Area of triangle = 1/2(height x base)
The problem states that base is 8 cm greater than the height; therefore, base-8 = height.
A = 1/2(b*h)
42 = 1/2(b*[b-8])
84=(b^2-8b)
rearrange to
b^2 - 8b -84
factor to
(b+8)(b-14)
Therefore, b = -8 cm which makes no sense and
b = +14 cm
and height = 14-8 = 6
Check:
1/2(b*h) = area
1/2(14*6) = 1/2(84)=42
below are the line plots for two data sets . Find the mean of each data set
Answers
A. 2 + 1 + 2 + 1 + 2 / 5 = 1.6
B. 4 + 4 + 4 + 4 / 4 = 4
Some mangoes were bought at the rate of Rs.1.50
per dozen and sold at the rate of Rs. 2.25 per dozen.
If there is a profit of Rs. 2.25 how many mangoes
were bought ?
f nnnes By selling
Answers
Answer:
3 dozen of mangoes were bought.
Step-by-step explanation:
Given that:
Mangoes were bought at the rate of Rs. 1.50 per dozen
Mangoes were sold at the rate of Rs. 2.50 per dozen
Profit made = Rs. 2.25
Let,
x be the dozen of mangoes bought.
Profit = Selling cost - Purchase cost
2.25 = 2.25x - 1.50x
2.25 = 0.75x
0.75x = 2.25
Dividing both sides by 0.75
[tex]\frac{0.75x}{0.75}=\frac{2.25}{0.75}\\x = 3[/tex]
Hence,
3 dozen of mangoes were bought.
population has decreased by 30% in the past A city has a population of 350,000. The ten years. What was the population of the city ten years ago?
Answers
Answer:
the population used to be 455,000
Step-by-step explanation:
Which is the equation of the line that passes through the points (-4, 3) and (2,-6)
Answers
-6 - 3 = -9 (y)
2 - -4 = 6 (x)
the slope is -9/6 or -3/2
now we plug the slop along with a set of points into the slope intercept formula (y=mx+b) to find b (the y intercept)
-6 = 2(-3/2) + b
-6 = -3 + b
-3 = b
so the equation would be y = (-3/2)x - 3
We want to find the equation of a line given that we know two points on the line.
The line is:
[tex]y = \frac{-3}{2}*x - 3[/tex]
Let's see how to find the line equation.
We know that a line equation is written as:
[tex]y = a*x + b[/tex]
Where a is the slope and b is the y-intercept.
If the line passes through the points (x₁, y₁) and (x₂, y₂), then the slope of the line is given by:
[tex]a = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
Here we know that the line passes through the points (-4, 3) and (2, -6), then the slope of our line is:
[tex]a = \frac{-6 - 3}{2 - (-4)} = \frac{-9}{6} = \frac{-3}{2}[/tex]
Then the line is something like:
[tex]y = \frac{-3}{2}*x + b[/tex]
To find the value of b, we can use one of the two points on the line.
For example, I will use the second one, (2, -6).
This means that when x = 2, y must be equal to -6.
Then we can replace that in the line equation and solve it for b:
[tex]-6 = \frac{-3}{2}*2 + b\\\\-6 = -3 + b\\-6 + 3 = -3 = b[/tex]
Then the equation of the line is:
[tex]y = \frac{-3}{2}*x - 3[/tex]
A graph of this line can be seen below, where the two points are also graphed.
If you want to learn more, you can read:
https://brainly.com/question/21637716
What is the value of x to the nearest tenth, given that PQ
is an angle bisector?
Answers
Answer:
16.8
Step-by-step explanation:
16.8
X/7=12/5
5x=84
X=16.8
Choose all the points that are located in quadrant IV.
Answers
Answer: (2,-4). (6,-9)
Step-by-step explanation:
Quadrant I: (pos.,pos.)
Quadrant II: (neg.,pos.)
Quadrant III: (neg., neg)
Quadrant IV: (pos., neg)
People pls stop reporting you downloaded the app so don’t complain about what’s on it :)
Answers
ohhhh that sounds interesting
Find the value of x and y in trapezoid ABCD
Answers
x + 140 = 180° x=40
y + 90 = 180° y=90
Find the measure of
a.90°
b.47°
c.86°
d.37°
Answers
Answer:
b
Step-by-step explanation:
Answer: B
Step-by-step explanation:
what is 10x10x10 pls help me
Answers
This is the answer
Solve the system of equations by using the elimination method.
2x – 7y = 3
5x – 4y= -6
pls help me
Answers
Answer:
Hi! The correct answer is (-2,-1)!
Step-by-step explanation:
~Add the equations in order to solve for the first variable, Plug this value into the other equations in order to solve for the remaining variables~
Aya = a1 + (n - 1)d
Find the 26th term of an arithmetic sequence with ai = -33 and d= 4.
O 67
O-130
O 71
O-129
Answers
Answer:
The 26th term of an arithmetic sequence is:
[tex]a_{26}=67[/tex]
Hence, option A is true.
Step-by-step explanation:
Given
a₁ = -33d = 4An arithmetic sequence has a constant difference 'd' and is defined by
[tex]a_n=a_1+\left(n-1\right)d[/tex]
substituting a₁ = -33 and d = 4 in the nth term of the sequence
[tex]a_n=-33+\left(n-1\right)4[/tex]
[tex]\:a_n=-33+4n-4[/tex]
[tex]a_n=4n-37[/tex]
Thus, the nth term of the sequence is:
[tex]a_n=4n-37[/tex]
now substituting n = 26 in the nth term to determine the 26th term of the sequence
[tex]a_n=4n-37[/tex]
[tex]a_{26}=4\left(26\right)-37[/tex]
[tex]a_{26}=104-37[/tex]
[tex]a_{26}=67[/tex]
Therefore, the 26th term of an arithmetic sequence is:
[tex]a_{26}=67[/tex]
Hence, option A is true.
