Show how to use substitution to solve the following system of equations. Write the solution as an ordered pair.
4x - y = 10
y = 2x - 2
*Hint: Substitute 2x-2 for ‘y’ in the first equation: 4x - (2x - 2)= 10
Then solve for ‘x’. Use your answer for 'x' to solve for 'y'.
Include in Your Answer:
The work used to solve for 'x'.
The work used to solve for 'y'.
Your final answer written as an ordered pair (x , y)
Answers
Answer:
(6, 10)
Step-by-step explanation:
Step 1: Substitute 2x-2 for ‘y’ in the first equation:
4x - (2x - 2)= 10
Step 2: Combine like terms
2x -2 =10
Step 3: Add 2 to both sides of the equation
2x = 12
Step 4: Divide both sides by 2
x= 6
Now substitute x=6 into any of the equations given, I chose the bottom one.
Step 5: Plug in x=6 and solve
y= 2(6) -2
y= 12-2
y= 10
Step 6: Write your answer as an ordered pair (x, y).
(6, 10)
Related Questions
What possible transforms are shown below?
1. A rotation of 90°
2. A reflection in the y-axis
3. A reflection in the x-axis
4. A translation 3 units to the left
Answers
Answer:
1. A rotation of 90°.
2. A reflection in the y-axis.
4. A translation of 3 units to the left.
calling brainiacs... probably some math logic question that im not getting.
Answers
Twelve movie tickets cost $84. How much does a single movie ticket cost?
Answers
Answer:
The answer would be 7 dollars.
Step-by-step explanation:
Hope this helps!
Answer:
$7
Step-by-step explanation:
84 divided by 12 is 7 so it would be 7 dollars
Answer with full explanation and step by step
brainly answer to person who answers fully first
Answers
Answer:
A. $181
Step-by-step explanation:
First get rid of the parking fee:
15*3 = 45
588 - 45 = 543
Then solve per night:
543/3 = 181
Have a great day! :)
Answer:
A, 181
Step-by-step explanation: first multiply 3 by 15 to get 45
Then subtract 45 from 588 to get 543
finally, divide 543 by 3 days to get $181
one step equation Y/1.8=80 what’s the answer?? ( with steps )
Answers
Answer:
5) Y = 144
Step-by-step explanation:
[tex]\frac{Y}{1.8} = 80[/tex]
Bring 1.8 from the numerator to the denominator and change the sign from divide to multiply. Also, the 1.8 switches sides so the equation looks like:
Y = 80*1.8
Y = 144
Hence, Y is equal to 144.
Hope this helps!!!
Please mark me as brainliest!!!
X1.8 X1.8
Y = 144
Not entirely sure if this is correct
How do you find the surface area of this?
Answers
Answer:
132
Step-by-step explanation:
No way you can find the whole area with one solution. So we have to go by each shape.
Let's start with the triangle on top, only one part of it. We know that half of the base is 3. We could go long and hard and use the pythagorean theorem and then repeat that 8 times. Instead, you can imagine moving the 2 triangles into a rectangle. Now you have a rectangle that is 3x4 inches. Repeat 4 times for each of the triangles. Then just the square which is 6x6. Add them and bam!
Which figure is a trapezoid?
A 4-sided shape with 2 parallel sides.
A 4-sided shape with 4 parallel sides.
A 4-sided shape with 4 parallel sides.
A 5-sided shape with 2 parallel sides.
Answers
Answer:
none of those
Step-by-step explanation:
A trapezoid is a 4-sided shape with 1 parallel side
Could you pls choose this as brainliest???!!!
whats greater brianliest + MAX ponits or 4 x 2160 4 x 2610
Answers
It is equal. The same either way. :)
Hey there!
PROBLEM #1. 4 * 2,160
4 * 2,160
= 2,160 * 4
= 2,160 + 2,160 + 2,160 + 2,160
= 4,320 + 4,320
= 8,640
Therefore, the answer should be: 8,640
Problem #2. 4 * 2,610
4 * 2,610
= 2,610 * 4
= 2,610 + 2,610 + 2,610 + 2,610
= 5,220 + 5,220
= 10,440
Therefore, the answer should be:
10,440
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
turn this fraction into a decimal 3 3/8
Answers
The answer for this equation would be 3.375
Answer:
3.375
Step-by-step explanation:
divide 3/8 and you get 0.375 then add 3 and you get 3.375
PLS HELP WILL GIVE BRANLIEST: The angle measurements in the diagram are represented by the following expressions. ∠A=5x-5 ∠B=3x+13
solve for x then find the measurement for ∠B
Answers
Answer: x = 9
Angle B = 40
Step-by-step explanation:
5x-5 = 3x+13 Those angles are the same, they are corresponding angles
5x = 3x + 18 Solve the equation
2x = 18
x = 9
3(9)+13 Solve it
Angle B = 40
Hope this helps.
Nike Super Sale !!!22 POINTS!!!
I can calculate the percent increase, percent decrease, percent off, markup, markdown, sales price, and taxes using real world scenarios.
Please help ASAP this is part of my final which is DUE TOMORROW (this is a repost)
Answers
Answer:
1. 136.709%
2. $10.4128
3. $ 45.556
4. 17.044%
Hope this helps and I'm not too late!
P.s if you do fail this ain't on me /hjk
The circumference of a circle is 125.6 millimeters. What is the circle's diameter?
Use 3.14 for .
Answers
Answer:
C = 2 pi r, so diameter is 40!
Step-by-step explanation
125.6 = 2 pi r
125.6 divided by 2 is 62.8.
Now its, 62.8 = pi times r
62.8/3.14 = 20.
r = 20
but this is the radius so the diameter is 2 times for than the radius. 20 x 2 = 40
Hi pls answer correctly thank you :)
Answers
Answer: The answer is C.
Step-by-step explanation: This is because reflecting a point from Quadrant 1 over the y-axis always gets you a result from Quadrant 2.
The answer is c
The answer is c
How to solve this? WILL GIVE BRAINLIEST
Answers
8x-6x=10
2x=10
X/2 10/2 = x=5
A prism has a length of 4 centimeters, width of 2 centimeters, and height of 10 centimeters. Use the prism to complete the statements. The surface area of the prism is cm2. The volume of the prism is cm3.
Answers
Answer:
Surface area = 136 cm² Volume = 80cm³
Step-by-step explanation:
Surface Area = face 1 + face 2 + face 3 + face 4+ face 5 + face 6
SA = 2(4) + 2(4) + 2(10) + 2(10) + 4(10) + 4(10)
SA = 8 + 8 + 20 + 20 + 40 + 40
SA = 16 + 40 + 80
SA = 136
----------------------
Volume = l*w*h
Volume = 4*2*10
Volume = 8*10
Volume = 80
Answer:
4
Step-by-step explanation:
*
The bearing of point B from point A is 034°.
Find the bearing of point A from point B.
Answers
Step-by-step explanation:
180 minus 34 degrees gives 146° not that sure
Match these equation balancing steps with the description of what was done in each step.
Answers
Answer:
1. C 2. A 3. B
Step-by-step explanation:
Step 1: 12x - 6 = 10 divided by 2 is 6x - 3 = 5
Step 2: When you add three to the left side of the equation the negative 3and positive 3 cancel out and when you add three to the right side of the equation 5 + 3 = 8
Step 3: multiplying both sides by 1/6. 1/6 is the reciprocal of 6 so they cancel out. 1/6 times 8 is 8/6 which condenses to 4/3 in simple terms.
Triangles A and B have vertical heights x cm and (x+3) cm respectively. The areas of Triangles A and B are 30cm² and 32cm² respectively. (a) Find, in terms of x, an expression for the base of: (i) Triangle A (ii) Triangle B (b) Given that the base of Triangle B is 4 cm less than the base of Triangle A, form an equation and show that it reduces to x² + 4x - 25 = 0 (c) Solve the equation and hence, find the height of Triangle B.
Answers
Answer:
Hi,
Step-by-step explanation:
Let say a the base of the triangle A and b the base of the triangle B.
[tex]a)\\\left\{\begin{array}{ccc}\dfrac{a*x}{2}&=&30\\\dfrac{b*(x+3)}{2}&=&32\\b=a-4\\\end{arraqy}\right.\\\\(i): a=\dfrac{60}{x}\\\\(ii): b=\dfrac{64}{x+3}\\\\b)\\\dfrac{64}{x+3}=\dfrac{60}{x}-4\\\\64x=(60-4x)*(x+3)\\\\4x^2+16x-180=0\\\\x^2+4x-45=0\\\\\Delta=16+4*45=196=14^2\\x=\dfrac{-4+14}{2}=5\ or\ x=\dfrac{-4-14}{2}=-9\ (impossible)\\So\ x=5,\ a=\dfrac{60}{5}=12, b=\dfrac{64}{5+3}=8\\\\Area\ of\ A=12*5/2=30\\Area\ of\ B=8*8/2=32\\\\Height\ of\ triangle\ B=x+3=5+3=8.\\[/tex]
Last year, the Good Foods Cereal Company produced 753,295 boxes of cereal. The company
produced the exact same number of boxes of each type of cereal. How many different types
of cereal could the Good Foods Cereal Company make?
Select all the possible numbers.
10
9
4
5
Answers
Answer:
5
Step-by-step explanation:
The only way to get a whole number is to divide 753295 by 5.
HELP ME ⟟ WILL BRAINIEST
Answers
Answer:
I think the volume is 31.5.
Step-by-step explanation:
Since you didn't include the original numbers for the base area, I just square rooted 9 because there's no other number other than 1 that you would multiply to get 9. Since volume is L*W*H I put 3 for the w and h (because 3*3 is 9) and then I multiplied 9 by 3.5 or 3 and 1/2 (the same thing) to get 31.5. So the volume is 31.5.
Answer:
I think the volume is 31.5.
Hope this helps bro
Step-by-step explanation:
HELP MEEEE!!!!!!!!!!!!!!!!!
Answers
9*(8+4)/4=27
Can someone answer this
Answers
Answer:
2÷1 =2
2x1 =2
2-1 = 1
Step-by-step explanation:
Hopw this helps
2 X 1 = 2
2 - 1 = 1
what does x equal in this y=2x + 3
Answers
Answer:
y=bh
Step-by-step explanation:
It depends on your y, assuming that you're trying to find the x-intercept;
y = 0,
x = -3/2
Find the solution to:
y=0.5+1
y=2x-2
Answers
Which relationships describe angles 1 and 2?
Select each correct answer.
adjacent angles
complementary angles
supplementary angles
vertical angles
Answers
Answer:
Complementary Angles
Step-by-step explanation:
They are both in right angles
The table shows the cost of hiring a plumber for the first 3 hours of a job.
Which graph shows the points in this table?
Ps: sorry there are too many screen shots.
Answers
Answer: it's A
Step-by-step explanation:
since the cost for hiring a plumber for three hours costs $120 so in graph A the graph has more likely stopped at $120 on the y axis which can be said as the cost axis too. I'm pretty sure the answer is A!
The cost of working is$150
A warehouse holds 94,896 bottles of water. There are the same number of bottles in each
aisle. How many aisles could there be?
Select all the possible numbers.
4
8
9
2
Submit
Answers
ik yall brainly ppl know what this is.
Answers
can you help please help
Answers
Answer:
90 degree rotation
Step-by-step explanation:
pls give brainleist
:)
what’s the answer to this?
X/3+1 = 6
Answers
Answer: x=15
Step-by-step explanation:
x/3+1= 6
Step 1: Subtract 1 from both sides (always do inverse operations with the number, not the x term(s))
x/3 + 1-1 = 6-1
x/3= 5
Step 2: Now we need to isolate x (get it on its own). To do this, we must move the 3 to the other side, which we will do by multiplying the 3 and the 5 (as since the 3 was used for divisision, its inverse operation is multiplication).
x/3 = 5
x = 5x3
x= 15
Step 3: Check by using PITA, or "Plugging In the Answers"
We came to the conclusion that x=15. Now, we can "plug in", or substitute the x in the equation for 15:
x/3 + 1= 6
15/3 + 1= 6
5+ 1= 6
6=6
Correct ✔️
Answer:
X = 24
Step-by-step explanation:
3 + 1 = 4
X/4 = 6
Multiply both sides by 4
X = 24