Answers
Answer:
Step-by-step explanation:
Transform System A to system B
option c
Transform System B to system C
option b
2x - 4y = -10 ---------A1
-8x + 7y = 22 ----------A2
A1 * 4 --------> 8x - 16y = - 40
A2 --------> -8x + 7y = 22 {Add }
-9y = -18 -------------B2
B2 ÷ (-9) y = 2
Related Questions
Can someone help me with the exterior angle sum?
Answers
Answer:
no sorry but it's okay you at least guess
Triangle 360/3=120
Pentagon 360/5=72
Quadrilateral 360/4=90
Hexagon 360/6=60
The area in square feet, inside a rectangle is given by the expression 1600 x? What is the value
of the area if x = 15 feet?
Answers
Answer:1375
Step-by-step explanation:
X= 15 is given
X squared is 15x15 = 225
1600 - 225= 1375
Answer:
Step-by-step explanation:
1600x=
x=15 feet
1600 x 15 Ft = 24000 Ft
The first night in a hotel costs 40 dollars. All additional nights cost 27 dollars. How many nights did we stay
at this hotel if the total bill was 148 dollars?
Answers
Answer:
5
Step-by-step explanation:
First, you would want to subtract the first nights cost from the bill, which you would get 108. And then you would want to divide 108 by how much it costs to stay additional night, so 108 divided by 27 = 4. But you have to remember to add the first night you stayed so it would be 5. I hope this helps :)
Answer:
4 nights
Step-by-step explanation:
148-40=108
108÷27=4
So, you spent 4 nights at the hotel.
Step by step pls I’ll make u brainly
Answers
Answer:
a = 6
Step-by-step explanation:
120 = 3 + 3(7a - 3) (by PEDMAS, expand parentheses first by distributive property)
120 = 3 + 7a(3) - 3(3)
120 = 3 + 21a - 9
120 = 21a - 6 (add 6 to both sides and rearrange)
21a = 120 + 6
21a = 126 (divide both sides by 21)
a = 126/21
a = 6
Step-by-step explanation:
120-(3+3*(7*a-3))=0
Step by step solution :
STEP
1
:
Equation at the end of step 1
120 - (3 + 3 • (7a - 3)) = 0
STEP
2
:
STEP
3
:
Pulling out like terms :
3.1 Pull out like factors :
126 - 21a = -21 • (a - 6)
Equation at the end of step
3
:
-21 • (a - 6) = 0
STEP
4
:
Equations which are never true:
4.1 Solve : -21 = 0
This equation has no solution.
A a non-zero constant never equals zero.
Solving a Single Variable Equation:
4.2 Solve : a-6 = 0
Add 6 to both sides of the equation :
a = 6
One solution was found :
a = 6
what is the sqaure root of 184
Answers
Step-by-step explanation:
13.56 is the square root of 184
7 of 11
Next >
Practice: Find the Total
This meal costs $27.00.
A 7% sales tax is applied, followed by an automatic tip
of 18%.
What is the total with tax and tip?
Check My Work
Answers
Answer:
$33.75
Step-by-step explanation:
Tax: 27*0.07 = 1.89
Tip: 27*0.18 = 4.86
Total: 27 + 4.86 + 1.89 = 33.75
Give three ratios equivalent to 30:40
Answers
Answer:
1. 60:80
2. 90:120
3. 120:160
Step-by-step explanation:
1. 30(2) : 40(2) = 60:80
2. 30(3) : 40(3) = 90:120
3. 30(4) : 40(4) = 120:160
Hello!!
Answer:
60:80
and
90:120
Hope this helps!!! :)
Simplify this expression (xy^4)^6
Answers
Hope it help
Answer:
x^6*y^24
Step-by-step explanation:
This will become:
[tex]x^6*(y^4)^6[/tex]
Next, multiply the exponents for y:
x^6 * y^24
So the answer is x^6*y^24
Help please!
What transformation is this?
Answers
Answer:
Translation (x, y) → (x + 5, y + 7)Step-by-step explanation:
It seems the translation:
(x, y) → (x + 5, y + 7)R(-4, -1) → R'(-4 +5 = 1, -1 +7 = 6)
S(-6, 3) → S'(-6 + 5 = -1, 3+7 = 10)
One batch of green paint uses 2 cups of yellow paint and 7 cups of blue paint.
Mai made a large amount of green paint using 14 cups of blue paint.
a. how many batches of green paint did she make?
b. how many cups of yellow paint she used?
Answers
Your welcome
Answer:
To find an equivalent ratio, she can start at the point (2, 1) and move
✔ right 2 and up 1
.
She can draw a straight line from the origin that passes through
✔ the equivalent ratios
.
As long as she picks a ratio on the line, Larissa will get
✔ the same
shade of green paint.
Step-by-step explanation:
Trust me on this, also can I have brainiest please?
Hope you do well! :D
Write 14 more then a number (pre algebra)
Answers
Answer:
x + 14
Step-by-step explanation:
Let's break it down to key terms:
14
more (+)
a number (x)
So 14 more than a number is just adding 14 to x.
x + 14
Hope this helps :)
Simplify the expression. 7d + 3 - 2d
Answers
Answer:
5d+3
Step-by-step explanation:
just as you combine regular numbers you can combine terms that have the same variable raised to the same exponent, and 7d-2d=5d. So the equation simplifies to 5d+3
Convert to degrees
(pie over 2)
pie
——
2
Answers
Answer:
90°
Step-by-step explanation:
[tex](\pi /2) * 180 = 90[/tex]
Whenever you are required to transfer from Radians to Degrees, simply multiply the Numerator by 180° (180). Treat the [tex]\pi[/tex] as a variable such as x and y, and divide by the numerator.
Solve 8x – 5 = 23 + 4x.
Answers
Answer: X equals 7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
First you want to simplify the equation
8x + (-5) = 23 + 4x
-5 + 8x = 23 + 4x
Then solve for x, but before we do that we !!!must!!! move all terms that have x to the left. Everything else would go to the right.
So we add -4x to both sides ..
-5+ 8x + (-4x) = 23 + 4x + (-4x)
-5 + 4x = 23 + 4x + (-4x)
-5 + 4x = 23 +0
-5 + 4x = 23
Then add 5 to both sides of the equation:
-5 + 5 + 4x = 23 + 5
0 + 4x = 23 + 5
4x = 23 + 5
4x = 28
Then divide each side by 4:
x = 7
And there you have it. The answer is 7. Hope this helps! :)
A rectangle is 6 feet long by 4 feet wide.
If 2 feet are removed from the length of the rectangle, what would be the area, in square feet, of the new rectangle?
Answers
Answer:
6 - 2=4
4 x 4= 16
Step-by-step explanation:
IF YOU $80 AND THEN GET $20 MORE,WHAT IS THE PERCENTAGE
Answers
Answer:
100% for 100 dollars
Step-by-step explanation:
i think so im not sure
An elementary school
busses hold 48 students
rides a bus to and from
How many busses do they
ANSWER
How do you know your answer is com
Answers
Answer:
48 x 2 if its to and from use caculator and do " 48 x 2"
Step-by-step explanation:
sorry if im wrong
The vertex form of the equation of a parabola is y = 5(x-3)2 - 6.
What is the standard form of the equation?
Answers
9514 1404 393
Answer:
y = 5x² -30x +39
Step-by-step explanation:
Multiply it out and collect terms.
y = 5(x -3)² -6
y = 5(x² -6x +9) -6 . . . . . expand the square
y = 5x² -30x +45 -6 . . . . use the distributive property
y = 5x² -30x +39 . . . . . . collect terms
_____
The expansion of a binomial square is ...
(a +b)² = a² + 2ab + b²
In this problem, we have a=x, b=-3.
Answer:
y = 5x² -30x +39
the answer above me explains it better go look at it
Two straight lines have equations y = p x + 4 y = p x + 4 and p y = q x − 7 p y = q x − 7 , where p p and q q are constants. The two lines meet at the point ( 3 , 1 ) ( 3 , 1 ) . What is the value of q q ?
Answers
Answer:
q = [tex]\frac{8}{3}[/tex]
Step-by-step explanation:
The point of intersection (3, 1 ) is the solution to both equations
Using
y = qx - 7 and substituting x = 3, y = 1
1 = 3q - 7 ( add 7 to both sides )
8 = 3q ( divide both sides by 3 )
[tex]\frac{8}{3}[/tex] = q
-2(x-3)+4x = -(-x+1) SOLVE EQUATION AND SHOW STEPS ...NEED ANSWER NOW
Answers
Answer:
x=-7
Step-by-step explanation:
-2(x−3)+4x=−(−x+1)
Step 1: Simplify both sides of the equation.
−2(x−3)+4x=−(−x+1)
−2)(x)+(−2)(−3)+4x=x+−1(Distribute)
−2x+6+4x=x+−1
(−2x+4x)+(6)=x−1(Combine Like Terms)
2x+6=x−1
2x+6=x−1
Step 2: Subtract x from both sides.
2x+6−x=x−1−x
x+6=−1
Step 3: Subtract 6 from both sides.
x+6−6=−1−6
x=-7
determine the quotient when 18 is divided by 6
Answers
Answer:
18 divided by 6 = 3.
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
18/6=3
6+6+6=18
help, this is incorrect! (can you help with working out?)
Answers
Answer:
262 × 39 ÷ 100 = 10218 ÷ 100 = 102.18
Step-by-step explanation:
This is the correct answer your's is wrong.
45+72=5(5+9)
what is maya's eror
Mya did not write the common factor in the correct place.
Mya wrote two expressions that are not equivalent.
Mya did not use the correct operations in the equation.
Mya used a factor that is not common to 45 and 72.
Answers
Answer:
gggcfbgcjun
Step-by-step explanation:
gmkknnzksksjxndncudhudbiejufnridmwjdiendysheixnddyhdbeudbeudne8djeudneudhebdjrn8fjr
Answer:
117 just because it is atless
I need help plz help me on this i will give u brainless on this question
Answers
Answer:
Equations: y=x+3 and y=-1/2x
solution: (-2,1)
Step-by-step explanation:
3. Your neighbor has a large tree on his property, and he's worried that the next serious storm will knock the tree onto his house. However, tree removal is an
expensive service. Since your neighbor's budget is limited, you offer to help him determine how high the tree is. If the distance from the house to the tree is
greater than the height of the tree, then the house should be avoid damage should the tree ever fall.
Answers
Answer:
ok we dont know the height of the tree
Step-by-step explanation:
The angle of elevation from a point on the ground to the top of a pyramid is 25 degree 30' The angle of elevation from a point 180 feet farther back to the top of the pyramid is 14 degree 20'. Find the height of the pyramid.
Answers
Answer:
Please help will mark brainliest
Please help will mark brainliest
Please help will mark brainliest
Please help will mark brainliest
Please help will mark brainliest
Please help will mark brainliest
Please help will mark brainliest
P
What is the value of x in the equation below
6(x-8)=72
Answers
Answer:
x = 20
Step-by-step explanation:
6(x-8)=72
6x-48=72
6x-48+48=72+48
6x=120
6x/6=120/6
x = 20
hope it's helpful ❤❤❤❤❤❤
THANK YOU.
#
Answer: x=20
Step-by-step explanation:
Distribute the 6 to the values in the parentheses
6x - 48 = 72
Add 48 to each side
6x = 120
Divide each side by 6
x = 20
)Elliot has been running a lawn care business since 2000. He cuts grass, trims, and weed whacks yards for his customers throughout the season. Each year, he has increased his fee by the same amount. The table shows what Elliot charged each customer for two given years of his business:
Year Lawn Care Fee
2000 $750
2010 $1350
A. What is the rate of change and initial value for Elliot’s business? How do you know?
B. Write an equation in slope-intercept form to represent the fees that Elliot charges each year.
Answers
Answer:
Rate of change = (1350 - 750)/(2010 - 2000) = 600/10 = $60
Initial value = $750
Equation is y = 60x + 750; where y is the amount charged to customer and x is the number of years from 2000.
A prescription for Singulair costs $14 for a month's supply. How much will this prescription cost for a year?
PLS HELP HW DUE IN 2MIN!!!!
Answers
I need help >?<
What is the solution is?
Answers
I hope I helped