Solve the system of equations by ELIMINATION.
Show the work that would correspond with the elimination method.
PLS HELP I ONLY HAVE 20 MINUTES
Answers
Step-by-step explanation:
4x + 2y = 10 --------(1)
2x + 3y = 33 -----------(2)
Multiply 2 with eq. (1) and 4 with eq. (2)
8x + 4y = 20 ____________(3)
8x + 12y = 132 ______(4)
Subtracting (3) from (4),
8x + 4y = 20
- 8x -12y = -132
----------------------
0 -8y = -112
y = 112/8
y = 4 is the answer.
Putting the vakue of y in eq. (2),
2x + 12 = 33
2x = 33-12
2x = 21
x = 21/2 is the answer.
Related Questions
Barry saved $7 less than Nadine. Together they saved $25.
How much did Nadine save? _____
Answers
Barry saved $9
Subtract 1/3 from 1/2 use 6 as the common denominator
Answers
Step-by-step explanation:
step 1. 3/6 - 2/6 = 1/6. you need to convert fractions to a common denominator.
Answer:1/6
Step-by-step exclamation
john makes $400 per week. What does it mean for him to get a 150% salary raise? Explain in words and then give an example showing a calculation.
can u guys plzzzzzzzzzzzz help me
Answers
-12{-8+[4(2-5)-(-10-2)]}
Answers
-12(-8+(4*2-4*5)+10+2)
-12(-8+(8-20)+12)
-12(-8-12+12)
-12(-8)
96
please help, and i will make you BRAINLIEST
If x = 9, solve this equation: 28 - 2x = __________?
Answers
Answer:
10
Step-by-step explanation:
28-2(9)=?
28-18=10
28-18 = 10
good luck !
Adelfa paid Php98. 75 for four books that all cost the same amount. What was the cost per book
A. Php24.69
B.Php32.92
C. 49.38
D.94.83
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Answer:
A.Php24.69
Step-by-step explanation:
98.75÷ 4=24.69
DFGHJKYTRFDVBJHNHDFGHJ
Answers
Answer:
uhfjemegk;lgklkewmkwemg
Step-by-step explanation:
Answer:
Very funny meme
Step-by-step explanation:
Dxdxdxd
To determine the dimensions of her second garden, she used a horizontal scale factor of 75% and a vertical scale factor of 150%. Using the given scale factors, what will be the horizontal and vertical measurements of her second garden?
Answers
Answer:
lol jk i dont know
Step-by-step explanation:
Answer:
sorry
Step-by-step explanation:
can someone tell me how to do this plz
Answers
A34*35
3456
=2340
Step-by-step explanation:
e=mc^2
Show all work:
Write the problem
Inverse operation
Solve
Check
Solve
m - 7 = -10
Answers
Answer:
m=-3
Step-by-step explanation:
m - 7 = -10
Ok so,
in order to get m by itself you just need to do the opposite of -7 which is +7 so you have to add 7 to both sides. On the left, both of the 7's cancel out and on the right -10 + 7 = -3. So, now it should look like this.
m=-3
To check you just need to plug in -3 into the question
Hope this helps! Have a good day
Prove: segment SD = segment PD
I think the answer is between C and D, which is the right one showing the triangle is ASA??
Answers
Answer:
C
Step-by-step explanation:
SD is congruent to PD and both triangles share the same side with each other.
The first one ^
What is the vertex for the quadratic
y = 2(x-3)^2 - 4? Type as (h.k)
Answers
Answer:
(3,-4)
Step-by-step explanation:
You can find the vertex where x = -b/2a
To find the values of a and b, it would be easier to write the equation in standard form, which is y = ax^2 + bx + c
y = 2(x^2 - 6x + 9) - 4
y = 2x^2 - 12x + 18 - 4
y = 2x^2 - 12x + 14
In this equation, a = 2 and b = -12.
So let's plug that into x=-b/2a
x = -(-12)/2(2)
x = 12/4
x = 3
Now we have the x, we can just plug that into the original equation and get the y coordinate for the vertex.
y = 2(x - 3)^2 - 4
y = 2(3 - 3)^2 - 4
y = -4
a)7d + 5c–9d + 4c+ 3
Answers
you need to add the like terms, so:
7d-9d=-2d
5c+4c=9c
3=3
To solve 3m - 5 = 196, what is the first step that should be performed? a. Add 5 to both sides. b. Subtract 5 from both sides. c. Multiply each side by 3. d. Divide each side by 3.
Answers
Answer:
add 5
Step-by-step explanation:
in algebra you do pemdas backwards
What is the estimation of 21x94
Answers
Answer:
its a estamite just guess
Step-by-step explanation:
Noah is planning his birthday party. He is deciding between three themes: space, safari, and comics. He also has to determine where he wants his party, at a skating rink or a park. Lastly, he needs to pick the day of the week that the party will happen. His options are Friday, Saturday, or Sunday. How many different possible party outcomes does Noah have with all of these options? solve 1 2 3 4 5 by this math problem
Answers
Answer:
18
Step-by-step explanation:
because 3 themes times 2 places times 3 days of the week = 18 options
hey I really need help in this can someone help me pls and thank you
Answers
Answer:
12 ¼
Step-by-step explanation:
if you add the 16ths its up to 4 16ths, simplified that is ¼. then you add the 3s, 3 × 4 is 12. add the two, 12 ¼
If 2/5 of the 200 flowers bloomed how many flowers did not bloom?
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explanation:
An elevator in a tall building starts at a floor of the building that is 102 meters above the ground. The
elevator descends 2 meters every 0.5 seconds for 9 seconds.
Answers
Answer:
An elevator in a tall building starts at a floor of the building that is 102 meters above the ground. The
elevator descends 2 meters every 0.5 seconds
step by step solution
An elevator in a tall building starts at a floor of the building that is 102 meters above the ground. The
elevator descends 2 meters every 0.5 seconds for 9 seconds.
A scientist is testing lake water at different depths. Order the samples of lake water from greatest depth to least depth. At what depth could the scientist take a new sample that would be shallower than the shallowest sample?
Answers
hey can someone double check my work pls
Answers
Here the question wants to find the range of function. Your answer is incorrect because you are confusing between range and domain.
What is domain?Domain is the set of all x-values. That means any values that are part of x are subset of domain itself. We can find domain two ways which are
Relation methodGraph methodBut we are not talking about domain as we are looking for the range of function.
What is range?Range is the set of all y-values. In the relations or ordered pairs (x, y). Our y is the range. Range can also be called Co-Domain or Output. But of course, we are not talking about finding range using relation method. We are going to find range by looking at the graph.
The range starts from minimum value to maximum value. If there is another point between minimum value and maximum, just ignore it.
Here is a diagram or easier way to understand.
[tex] \boxed{minimum} \Longrightarrow \boxed{maximum}[/tex]
From the graph, our minimum is -5 and our maximum is -1. Notice that there is another opened point at -2 which we are supposed to ignore. Because both minimum and maximum are closed dots. Hence, we use >= or <= only.
Therefore the solution should be
[tex] - 5 \leqslant y \leqslant - 1[/tex]
Answer[tex] - 5 \leqslant y \leqslant - 1[/tex]
......the correct answer is A
Reggie is deciding when to go bowling with his friends. Friday night is glow-bowling night,
with 5 glow-bowling games for $22.50. But the early-bird special on Saturday morning offers
8 games for $30. How much more does glow-bowling cost per game?
Answers
Answer:
glow bowling costs $0.75 more per game
Step-by-step explanation:
1. divide $22.50 by 5 games to find the price per game for glow-bowling, which comes out to $4.50
2. divide $30.00 by 8 games to find the price per game for the early-bird special, which comes out to $3.75
3. subtract $3.75 (early-bird bowling) from $4.50 (glow-bowling) and it = $0.75
4.50-3.75=0.75
Answer: The answer is 0.75
Step-by-step explanation:
Solve the following equations:
x/3+1=7/5
Answers
Answer:
8/5..............…is the answer
Answer:
Standard Form: 6/5 Mixed Number: 1 1/5 Decimal: 1.2
Step-by-step explanation:
1. Subtract 1 from both sides of the equation
x/3 + 1 = 7/5
x/3 + 1 - 1 = 7/5 - 1
2. Simplify
2a.
x/3 + 1 - 1 = 7/5 - 1
x/3 = 7/5 - 1
2b.
x/3 = 7/5 - 1
x/3 = 2/5
3. Multiply all terms by the same value to eliminate fraction denominators
x/3 = 2/5
3 x x/3 = 3 x 2/5
4. Simplify
4a. Cancel multiplied terms that are in the denominator
cross out the threes in 3 x x/3 then you should get x = 3 x 2/5
4b. Multiply the numbers
x = 3 x 2/5
x = 6/5
And your answer should be 6/5|
I hope this helps you or anyone
please help me, i'll give brainlyest
Answers
Hope this helps
Have a great day/night
Reflection across the x-axis for (-3,-7)
Answers
Answer:
(-3, 7)
Step-by-step explanation:
The formula for reflecting a point across the x-axis is (x, y) → (x, -y).
Substitute: (-3, -7) → (-3, 7)
I hope this helped! :)
Please help me this is due in and hour
Answers
Answer:
The answer is All Solution
Step-by-step explanation:
Which best describes the two-dimensional shape created by the cross-section shown on the cylinder?
A.Cirlcle
B.Square
C.Ellipse
D.Rectangle
Answers
Answer:
Step-by-step explanation:
Answer:
B
Step-by-step explanation: im just smart
what is the gradient of (0,3) and (1,8)
Answers
Answer: 5/1 = 5
Step-by-step explanation:
The gradient is the slope of something. The slope = rise/run so you just do 8-3 = 5 is the rise and then 1-0 = the run so its a gradient of 5
What is the yyy-intercept of y=5y=5y, equals, 5
Answers
Using the slope-intercept form, the y-intercept is 5 5 . b=5
Step-by-step explanation:
wikipedia
Answer:
0,5
Step-by-step explanation:
:) Hope you guys have a good day!
Jeremy collected data from an experiment he performed in science class. He compiled his data in this table.
X 0 1 2 3 4
y 1 24 816
Which equation represents the data shown in the table?
CA
y = x + 1
B.
y =
= log2x
С
y = 22
D
y = 22
