Answers
Answer:
(0, 3 )
Step-by-step explanation:
Given the 2 equations
x + 3y = 9 → (1)
- 2x + 2y = 6 → (2)
Multiplying (1) by 2 and adding to (2) will eliminate the x- term
2x + 6y = 18 → (3)
Add (2) and (3) term by term to eliminate x, that is
0 + 8y = 24
8y = 24 ( divide both sides by 8 )
y = 3
Substitute y = 3 into either of the 2 equations and solve for x
Substituting into (1)
x + 3(3) = 9
x + 9 = 9 ( subtract 9 from both sides )
x = 0
solution is (0, 3 )
You have to make either the xs or ys the same so you could find out the other value first
Related Questions
What is the solution to this system of
equations?
S 2x – 3y = -4
-6x + 9y = 12
Answers
Answer:
2x-3y=-4
2x=3y-4
x=(3y-4)/2........1
-6x+9y=12
9y=12+6((3y-4)/2)
9y=12+9y-12
9y-9y=12-12
0=0not possible
9y-6y=4
y=4/3
Step-by-step explanation:
check it out a question once
A cuboidal soap dish has length 8 cm 5 cm and 13 cm find the volume of the research services placed on the top of the other
Answers
Answer:
520 cm³
Step-by-step explanation:
Volume of the cuboidal soap = length × width × height
Length = 8 cm
Width = 5 cm
Height = 13 cm
Volume of the cuboidal soap = length × width × height
= 8 cm × 5 cm × 13 cm
= 520 cm³
Round 10.95 to the nearest tenth
Answers
Hi there! To round 10.95 to the nearest tenth, we find the number in the tenth place, which is 9 and look one place to the right. Round up if the number is greater than 5 or equal to 5 and round down if its less than 5.
The answer is 11.0 or just 11.
Ed: Explanation below.
11.00
10.99
10.98
10.97
10.96
10.95 Look at the 9. Then look to the right. Do I round up or down?
10.94
10.93
10.92
10.91
10.90
If the number is greater or equal to 5, you round up. If the number is smaller than 5, you round down. 9 is greater than 5, so we round up.
Therefore, the answer is 11.
Describe the translation that maps ABCD onto A’B’C’D’?
Answers
Answer:
Umm...where is it? There is no image
Step-by-step explanation:
Translations...
How many times did it move up or down?
How many times did it move to the right or left?
Transition starters
ABCD moved ( write here the number of spaces) times to the ( left or right), and ( write the number of spaces) times to the ( top or bottom) to convert into A'B'C'D'.
Hope this helped!
Have a supercalifragilisticexpialidocious day!
PLEASE HELP !!!
What is the axis of symmetry for the parabola shown?
A)
x = -3
B)
x = -2
C)
y=-3
D)
y = -1
Answers
Answer:
B: x=-2
Step-by-step explanation:
This is because x=-2 is where the parabola is split into two equal halves.
Diana makes 3 batches of biscuits using 15 cups of flour. How many cups of flour does Diana use per batch?
Answers
Answer:
5 cups
Step-by-step explanation:
15 divided by 3
Answer:
5 cups
Step-by-step explanation:
15 cups/3 batches = 5 cups
how to find out −7.1 + y = 3.5
Answers
Answer: 10.6
Step-by-step explanation:
-7.1 + y = 3.5
y = 3.5 + 7.1 [ -7.1 changes to 7.1 when transferred to RHS]
y= 10.6
Hope it helped u,
pls mark as the brainliest
^_^
-7.1 + y = 3.5
y - 7.1 = 3.5
y = 3.5 + 7.1
y = 10.6
someone pls halppp i've limited it down to A and B
Answers
Sorry if I get it wrong
Find
sin 22 1/2
°
please help
Answers
Answer:
0.69465837 is the answer
Can someone pls help me out on the middle one pls ?:(
Answers
Answer:
77 C
Step-by-step explanation:
To find the mean add all the numbers together then divide by the total amount of numbers
Coach Smith purchased a fishing boat for $15,000, and the value of the boat
depreciates at 18% per year. How much will the boat be worth after 8 years?
Answers
Answer:
$3066
Step-by-step explanation:
Tim earns 108.75 for working 15 hours. how much money does he earn per hour?
Answers
Step-by-step explanation:
Only divide 108.75 by 15
and
answer is 7.25
Please help me out! I'll mark Brainliest
Answers
Answer:
rational and rational..........
If l=25, n=8, d=3, and l=a+(n-1)d, find the value of a (I got a=2 am I right if not whats the answer?)
Answers
Answer:
A=4 I think
Step-by-step explanation:
I=a+(n-1)d
25=a+(8-1)3
25=a+21
25-21=a+21-21
4=a
FIND THE SUM AND THE DIFFERENCE FOR EACH PAIR OF POLYNOMIALS please show work
Answers
Answer:
12a. Addition = 7y⁵ + 7y³ – 6y – 5
12b. Subtraction = – y⁵ – 3y³ + 8y + 11
13a. Addition = 5x⁴ + x³ – 6x² + 8x + 17
13b. Subtraction = – x⁴ – 9x³ –6x² + 8x + 3
14a. Addition = – 2b⁴ + b³ – 11b² – 1
14b. Subtraction = 4b⁴ + 7b³ – b² + 8b – 1
15a. Addition = m⁵ + m⁴ + m³ + m²
15b. Subtraction = m⁵ – m⁴ – m³ – m² – 10
16a. Addition = 4x⁴ + 12x³ + 18x² + 16x + 4
16b. Subtraction = 4x⁴ – 4x³ + 14x² – 16x + 4
Step-by-step explanation:
12a. Addition
.. 3y⁵ + 2y³ + y + 3
+ (4y⁵ + 5y³– 7y – 8)
————————————
= 7y⁵ + 7y³ – 6y – 5
12b. Subtraction
.. 3y⁵ + 2y³ + y + 3
– (4y⁵ + 5y³– 7y – 8)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
= – y⁵ – 3y³ + 8y + 11
13a. Addition
.. 2x⁴ – 4x³ – 6x² + 8x + 10
+ (3x⁴ + 5x³ +...................+ 7)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
= 5x⁴ + x³ – 6x² + 8x + 17
13b. Subtraction
.. 2x⁴ – 4x³ – 6x² + 8x + 10
– (3x⁴ + 5x³ +...................+ 7)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
= – x⁴ – 9x³ – 6x² + 8x + 3
14a. Addition
...... b⁴ + 4b³ – 6b² + 4b – 1
+ (– 3b⁴ – 3b³ – 5b² – 4b)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
= – 2b⁴ + b³ – 11b² – 1
14b. Subtraction
...... b⁴ + 4b³ – 6b² + 4b – 1
– (– 3b⁴ – 3b³ – 5b² – 4b)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
= 4b⁴ + 7b³ – b² + 8b – 1
15a. Addition
... m⁵ + m³ – 5
+ (m⁴ + m² + 5)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
= m⁵ + m⁴ + m³ + m²
15b. Subtraction
... m⁵ + m³ – 5
– (m⁴ + m² + 5)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
= m⁵ – m⁴ – m³ – m² – 10
16a. Addition
.... 4x⁴ + 8x³ + 16x² + 4
+ (4x³ + 2x² + 16x)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
= 4x⁴ + 12x³ + 18x² + 16x + 4
16b. Subtraction
.... 4x⁴ + 8x³ + 16x² + 4
– (4x³ + 2x² + 16x)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
= 4x⁴ – 4x³ + 14x² – 16x + 4
Guys I know I just asked something but my teacher just posted a assignment I looked at it and I remembered some of it from 3rd grade but can someone help me with this plz I don’t remember some of it I’m giving away 25 points now plzz
Answers
Answer:
1) 45.67x32.58=1487.93
2) $4.70x24=$112.80
3) $4.75x32+($2456.75)=$2608.75
4) 24.6 feet x 14.8 feet=364.08 sq feet
Step-by-step explanation:
Answers:
(I'm not sure why there are 2 questions marked number 1 though so tell me if you need me to clarify anything)
1.) 1,487.93
1.) $112.80
2.) $2,608.75
3.) 364.08 sq ft
Hope this helped, have a nice day! :)
can anyone please help me really struggling
Answers
Answer:
C 862 square units
Step-by-step explanation:
the length of side of Octogan is given by the square. so length of each side is 15
Area of an Octogan
A=2(1+2)a^2
A=2(1+2)15^2 = 1086.4 square units
A= l X w
A= 15 X 15 = 225 square units
1086.4 - 225 = 861.4 square units
Assessment timer and count
Assessment items
Item 3
helllllpp meh please!!!
Each cube in this solid figure is a unit cube.
What is the volume of this solid figure?
Answers
Answer:
hi :)
Step-by-step explanation:
hi :)
The product of 6 and a number , x is twice the difference of x and 5. Solve for variable x. Need help here the choice
A.-1.25
B.1.25
C.-2.5
D.2.5
Answers
Answer: I think D
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
B. X=5
Step-by-step explanation:
To solve this problem, first, you have to isolate the value of x from one side of the equation.
First, divide by 4 from both sides of an equation.
Solve.
|0.5x-2.5|=0
0.5x-2.5=0
x=5
Therefore the correct answer is x=5.
How do I find the Area of a Cylinder
Answers
Answer:
A=2πrh+2πr^2
Step-by-step explanation:
Write a sentence to describe the absolute vaule 15 points
Answers
a) 4
c) 18
e) 44
g) 99
i) 128
HELP ME PLEEEAASSEEE I SUCK AT MATH
Answers
Answer:
the answer is letter d
Answer:
Choice D
Step-by-step explanation:
Used my graphing calculator
Need help ASAP!!
Find the value of x in the figure below if LP is parallel to MO.
A.) 6 units
B.) 10.7 units
C.) 5.5 units
D.) 3 units
Answers
Answer:
A. 6 units
Step-by-step explanation:
took the test
What single percentage change is equivalent to a 11% decrease followed by a 21% increase?
Answers
Answer:
7.69% increase
Step-by-step explanation:
Let our initial number be 100
11% decrease will be;
100- 0.11(100) = 100-11 = 89
A 21% increase will be;
89 + 21% of 89
89 + 0.21(89)
= 107.69
difference from the starting is 107.69 - 100 = 7.69
The percentage is 7.69% increase
2,76
5. Rationalize the denominator of the following: 2 root 6 divided by root 2 + root 3
Answers
Answer:
6 √2 -4 √3
Step-by-step explanation:
Here, we want to rationalize the denominator of the following surdic fraction;
2√6/(√2 + √3)
To rationalize this, we have to multiply the numerator and the denominator by the conjugate of the denominator
The conjugate of the denominator is √2 - √3
So, we have the rationalization as follows;
2 √6(√2-√3)/(√2 + √3)(√2-√3)
Thus, we have
(4√3-6 √2)/(-1)
= 6 √2 -4 √3
Solve: 4x - 27 = 57 ty
Answers
Answer: x=21
Step-by-step explanation:
Look at attached file
Amanda wants to run 26.2 miles, the distance of a marathon, in a month. She plans to run ¾ of a mile each day. How many days will she need to run? Will she be able to reach her goal?
Answers
Answer:
it would take about 35 days
Step-by-step explanation:
Hakeem has a coupon for 13 off the regular price, t, of a tent. Which expressions represent the price of the tent using the coupon? Select all the correct expressions.
1/3t
2/3t
t−2/3t
t−1/3
t−2/3
t−1/3t
Answers
Answer:
123456789101112131415
Divide 4.8 by 11 Plzzzz help by the end of the day I need help
Answers
Writing Equations
Instruction Active
Identifying Components of an Equation
Quick
Chock
Consider the equation
x + 3y - 23 = 42
The variables are
The coefficients are
The constants are:
✓
Answers
Answer:
The Variables are X & Y
The Coefficients are 1/4 & 3
and the Constants are -23 and 42
Step-by-step explanation:
it's correct on edge!
