Answers
Answer:
6x - 3 y = 6
6x + 8y = -16
multiply equation 2 by -1
-6y -8y = 16
6x - 3y = 6
-11y =22
y = -2
substitute the value of y in 1
6x - 3(-2) = 6
6x + 6 =6
6x =0
x = 0
(x;y)
[0; -2]
9) 4x + 3y = 19
6x + 3y =33
multiply equation 2 by -1
4x + 3y = 19
-6x - 3y = -33
eliminate one variable by adding the equations
-2x =-14
x = 7
substitute the value of x in the equation
4(7) +3y = 19
28+ 3y = 19
3y =-9
y = -3
(x;y)
[7 ; -3]
10 ) 2x + 6y = 17
2x - 10y = 9
multiply by -1 in equation2
2x +6y = 17
-2x + 10 y = -9
eliminate one variable by adding the equations
16 y = 8
y = 1/2
substitute the value of y in the equation.
2x +6 (1/2) = 17
2x + 3 = 17
2x = 14
x = 7
x:y
[7 ; 1/2 ]
Related Questions
What is the total surface area of the triangular prism shown?
Answers
Answer:
24 2/5ft
Step-by-step explanation:
add all the sides together.
4ft x 2
3ft x 2
10 2/5 x 1
=
24 2/5
Find the surface area of the cylinder.
Answers
Answer:
[tex]A=227.84\ inch^2[/tex]
Step-by-step explanation:
Given that,
The diameter of the cylinder, d = 5 inch
Hight, h = 12 m
Radius, r = d/2 = 2.5 m
We need to find the surface area of the cylinder. The formula for the surface area of the cylinder is given by :
[tex]A=2\pi rh+2\pi r^2\\\\A=2\times \dfrac{22}{7} \times 2.5\times 12+2\pi \times 2.5^2\\\\A=227.84\ inch^2[/tex]
So, the lateral surface area of the cylinder is equal to [tex]227.84\ inch^2[/tex].
a square has the side length (x+5) units whats is its area
Answers
Answer:
25 square units
Step-by-step explanation:
Hope this helps :)
hi!
which equation is graphed here?
Answers
Answer:
The equation would be y = -3/2x - 1
Step-by-step explanation:
The slope is -3/2 and the y-intercept is -1.
if x is 6 what is x + 4
Answers
Answer:
put six on the place of x..
Step-by-step explanation:
So 6+4 =10 Answer
hope it helps
Which of these are statistical questions? Select all that apply.
A. Do you walk or get a ride to school?
B. How many text messages do you send during one week
C. How many months away is your birthday
D. Do you live within three blocks of the school?
E. Do you like sports?
Answers
Answer:
Step-by-step explanation:
Solve the inequality. m/-5 < or = 4
Answers
Answer:
M < or = -20
Step-by-step explanation:
Brainlist please
PLEASE HELPPP! I'LL GIVE BRAINLEST!
Answers
Answer:
if the numbers are together
Step-by-step explanation:
63210 is the correct answer friend
hope it helps
(20 points) How many, and what type of solutions do the follow
quadratic equations have?
4x2 - x +4= 0
Answers
Answer:
2 , Real
Step-by-step explanation:
The quadratic equation is ,
⇒ 4x² - x - 4 = 0 .
Since it is a quadratic equation and has the highest degree of variable as 2 therefore it will have two solutions . For determining the nature of roots we will find the discriminant . The Discriminant of a quadratic equation in standard form of ax² + bx + c = 0 , is ,
⇒ D = b² - 4ac
⇒ D = (-1)² - 4 × 4 × (-4)
⇒ D = 1 + 64
⇒ D = 65 .
Since Discriminant is Greater than 0 , therefore the roots will be real .
Pls help I’ll addd extra points
Answers
Answer: 3/5
Step-by-step explanation:6/10 6 divide by 2 and 10 divide by 2
hoped this helped:)
Answer:
[tex] \frac{3}{5} [/tex]
Step-by-step explanation:
[tex] \frac{6}{10} \div \frac{2}{2} [/tex]=
[tex] \frac{3}{5} [/tex] ....
What is the difference of
7/8 − 1/3
Answers
Answer:
[tex]13 \div 24[/tex]
13/24
Step-by-step explanation:
[tex]7 \div 8 - 1 \div 3[/tex]
[tex]taking \: the \: lcm \: of \: 8 \: and \: 3[/tex]
[tex]21 - 8 \div 24[/tex]
[tex]13 \div 24[/tex]
if it helps don't forget to like and mark me
ava walks to the end of her section of trail and back in 90 minutes Luis walks his his section of the trail in 1 3/4 hours. Who walks longer?
Answers
Answer:
Luis
Step-by-step explanation:
One hour is 60 minutes total, leaving and extra 30 minutes for Ava, which is half of 60. So, in fraction form, she walked 1 1/2 OR 1 2/4 hours, which is less than Luis. He walked about an hour and 45 minutes total, or 105 minutes.
ente. The box plot below shows the heights, in inches, of the 24 students in Brandon's homeroom -- 47 49 51 53 55 57 59 61 63 65 67 69 Select all the statements that describe the dass according to the box plot.
Answers
Answer:
4+
Step-by-step explanation:
Question 5: 10 pts
There are 40 pieces of building blocks in a bag. 10 each of blue, green, red, and yellow. Two pieces are chosen
at random. Identify the probability that both of the pieces chosen are green
Answers
Answer:
The answer is 3/52
Step-by-step explanation:
1.) Write a quadratic rule that represents the table below in standard form.
- 7
x
у
-6
-5
0
-5
-8
4
-9
-3
-8
-2
-5
-1
0
0
7
1
16
2.
27
Answers
Step-by-step explanation:
1st quadrant is(+,+)
2nd quadrant is(+,-)
3rd quadrant is (-,-)
4th quadrant is (-,+)
4 * (3.4+2)-(56 divided by 7)= 13.6, please give an explanation to this problem!!
Answers
Answer:
[tex]=13.6[/tex]
Step-by-step explanation:
[tex]\mathrm{Remove\:parentheses}:\quad \left(a\right)=a[/tex]
[tex]=4\left(3.4+2\right)-\frac{56}{7}[/tex]
[tex]=21.6-8[/tex]
[tex]\mathrm{Subtract\:the\:numbers:}\:21.6-8=13.6[/tex]
[tex]=13.6[/tex]
Find the value of x.
Answers
2x+72=180
2x=180-72
2x=108
x=54
answer ;
2x + 1 + 71 = 180 2x + 72 = 180 2x = 180 - 72 = 108x = 108/2( refer the attachment for division )
hence , x = 544. A system of equations is shown below.
5x + 2y = - 15
2x-2y= -6
What is the solution to the system of equations?
Answers
Answer:
first one is x=-15-2y/5
second one x=y-3
Step-by-step explanation:
Two boxes have the same volume. One box has a base that is 5cm by 5 The other box has a base that is 10cm by 10cm
How many times as tall is the box with the smaller base?
Answers
Answer:2
Step-by-step explanation:
sketch the graphs using 3 points that belong to it y = -3x +2
Answers
Answer:
Step-by-step explanation:
Answer:
0,2
1,-1
2,-4
Step-by-step explanation:
Atlanta's population is two million, eight hundred thirty-three thousand, five hundred
eleven. Write this number in standard form (using numbers).
??
Answers
Answer:
2,833,500
Step-by-step explanation:
Which of the following inequalities matches the graph?
A. -2x + 3y > 7
B. 2x - 3y < 7
C. -3x + 2y ≥ 7
D. 3x - 2y ≤ 7
Answers
a play station costs $500, but you want to only pay $450. How much discount in percents do you want?
Answers
Answer:
You only want a 10% discount...
500 - 450 = 50
50/500 = 1/10 = .1 = 10%
Answer:
10%
Step-by-step explanation:
450 of 500 is 90%
so you would ask for a 10% discount.
I need help like NOW pronto im confused HELP
ABC - DEF. what sequence of transformations will move ABC onto DEF
Answers
Answer:
A) A dilation by a scale factor of 2, centered at the origin, followed by a 180° clockwise rotation about the origin.
Step-by-step explanation:
a dilation by a scale factor of 2, centered at the origin will double its size and move point A from (-2,2) to (-4,4). Then the clockwise rotation of 180° degrees will rotate the figure so that it's point A (now called point D) will be at (4,-4).
Answer:
a pex
Step-by-step explanation:
Helppppp I have until 11:30 and it’s 10:36
Answers
Answer:
911
Step-by-step explanation:
Now you can get help
If AJKL ~ AMKN, find the value of x.
Answers
Answer:
14
Step-by-step explanation:
The two triangles are similar
KN/KL = MN/JL
12/32 = (x+1)/(3x-2) multiply the fractions
36x-24 = 32x+32 export like terms to the same side
36x-32 = 32 + 24
4x = 56 divide both sides by 4
x = 14
12 1/3 +6 2/5 reduce these into lowest terms
Answers
Answer:
18 11/15
Step-by-step explanation:
This is the answer because:
1) First, find the common denominator: 12 1/3 = 12 5/15 and 6 2/5 = 6 6/15
2) Then add the fractions: 12 5/15 + 6 6/15 = 18 11/15
3) 18 11/15 is reduced to the lowest terms because 11 is a prime number.
Therefore, 18 11/15 is the answer.
Hope this helps! :)
Answer:
52.7
Step-by-step explanation:
121/3= 40.33
62/5= 12.4
40.3+12.4=52.7
plz mark me as brainliest.
Match each equation on the left with the number and type of its solutions on the right.
Answers
Answer:
4= 0 is two one real solution.
Find five rational numbers between 2/3 and 4/5
Answers
Answer:
Find five rational numbers between 2/3 and 4/5 -
61/90 62/90 63/90 64/90 65/90 66/90 67/90
choose any five :)
Find x. Assume that segments that appear tangent are tangent.
Answers
Answer:
24
Step-by-step explanation:
By tangent secant theorem:
[tex]25(25 + x) = {35}^{2} \\ 625 + 25x = 1,225 \\ 25x = 1225 - 625 \\ 25x = 600 \\ x = \frac{600}{25} \\ x = 24[/tex]