Graham graphs the following system of equations to determine its solution.
2x + 4y = 12
2x - y = 2
What is the correct solution?
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ASAP plz
Answer: (2,2)
Step-by-step explanation:
I'm going to use substitution to solve this:
First, I use the second equation to solve for y in terms of x.
2x - y = 2
-y = 2 - 2x
y = 2x - 2
Then, I plug the value for y into the first equation:
2x + 4y = 12
2x + 4(2x - 2) = 12
2x + 8x - 8 = 12
10x - 8 = 12
10x = 20
x = 2
Now that we have x, we can plug it into either equation (I used the first) to get the value for y:
2x + 4y = 12
2(2) + 4y = 12
4 + 4y = 12
4y = 8
y = 2
We get the point (2,2) as a solution.
Note: This is the point where both lines intersect.
After solving the equation, the value of for the points x and y are (2, 2).
What is an equation?Equations are mathematical expressions that have two algebra on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.
As per the given equation in the question,
2x + 4y = 12 (i) and
2x - y = 2 (ii)
Solve the value for y,
5y = 10
y = 10/5
y = 2
Substitute y=2 in equation (i)
2x + 4(2) = 12
2x = 12 - 8
x = 4/2
x = 2
Therefore, the point is (2, 2).
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I took an Uber that had a bill of $15.20. I left a 15% tip. How much was the Uber including the tip?
Answer:
$17.48
Step-by-step explanation:
^^^^^^^^^^^^^
An isosceles triangle has an angle that measures 50°. Which other angles could be in that isosceles triangle? Choose all that apply.
Answer:
is their any options cause what the question says is to choose or am I wrong.
HELP MEEEEEEEEE
how many grams are in 562 dg?
Answer: the answer is 56.2 g
Step-by-step explanation:
562 dg * 1 g/10 dg = 56.2 g
hope i helped
-lvr
is f(-2) positive or negative
Answer:
Depends on [tex]f(x)[/tex]
Step-by-step explanation:
Example:
if [tex]f(x) = |x|[/tex]
then [tex]f(-2) = 2[/tex]
if [tex]f(x) = x ^ 3[/tex]
then [tex]f(-2) = -8[/tex]
research: even & odd functions.
Answer:
negative
Step-by-step explanation:
because in number 2 got the little line in one side
The parabola with the vertex at (5,5) and a focus (7,5) would open
Answer:
Up. The focus is above the vertex meaning the parabola will open up. If the focus was below the parabola then it would open down.
Step-by-step explanation:
Point AAA is at {(-6,-5)}(−6,−5)left parenthesis, minus, 6, comma, minus, 5, right parenthesis and point CCC is at {(4,0)}(4,0)left parenthesis, 4, comma, 0, right parenthesis. Find the coordinates of point BBB on \overline{AC} AC start overline, A, C, end overline such that the ratio of ABABA, B to BCBCB, C is 2:32:32, colon, 3. B=\large(
Answer:
(0, 2)
Step-by-step explanation:
Given the following
coordinate A (-6, 5)
Coordinate C (4, 0)
Ratio is 2:3
Required
Coordinate of B
Using the midpoint formula expressed as;
M(X,Y) = [(ax1+bx2/a+b), ay1+by2/a+b]
x1 = -6, y1 = 5, x2 = 4 and y2 = 0
a = 2 b = 3
Get X;
X = ax1+bx2/a+b
X = 2(-6)+3(4)/2+3
X = -12+12/5
X = 0/5
X = 0
Get Y;
Y = ay1+by2/a+b
Y= 2(5)+3(0)/2+3
Y = 10/5
Y = 2
Hence the coordinate of B is at (0, 2)
Answer:
the answer is (-2,-3)
Step-by-step explanation:
i got it right
Help ill give brainlist
Answer:
x=2
Step-by-step explanation:
Jane Dough sells her doughnuts for $0.15 more than what it costs her to make each doughnut. If you can buy 2 dozen doughnuts for $8.40, how much does it cost Jane to make each doughnut?
Answer: $0.20
Step-by-step explanation: $8.4 divided by the 24 or 2 dozen dougnuts she sells means she sell each donut for $0.35 and if we know that Jane Dough sells her doughnuts for $0.15 more than what it costs her to make each doughnut then $0.35 - $0.15 = $0.20 to make each donut
Answer:
8.10
Step-by-step explanation:\
Mia's work to find the slope of a trend line through the points (3, 10) and (35, 91) is shown below. Mia's Work Step 1 StartFraction 3 minus 35 Over 10 minus 91 EndFraction Step 2 StartFraction negative 32 Over negative 81 EndFraction Step 3 StartFraction 32 Over 81 EndFraction What was the first error that Mia made?
Answer:
Mia switched the numerator and the denominator.
Step-by-step explanation:
i got it right on edge 2020
and uh also because its y2 - y1 over x2 - x1, not x2 - x1 over y2-y1.
Answer:
C
Step-by-step explanation:
what time is 55 minutes before 7:15 am
Answer:
6:20 AM
Step-by-step explanation:
Answer: 6:20
Step-by-step explanation:
Determine the measure of the unknown angle in the triangle.
you add 78 plus 37 then subtract from 180
Answer:
65°
Step-by-step explanation:
Let the unknown angle be ∠ABC
∠ABC + 78° + 37° = 180° (angle sum property of a triangle)
∠ABC + 115° = 180°
∠ABC = 180° - 115°
∠ABC = 65°
∴the unknown angle in the triangle is 65°
thianamccornell1 no one else
Answer:
Oh I see, that’s weird
Step-by-step explanation:
Maybe you have to wait a while or wait for somebody else to answer because that’s what happens to me sometimes
The perimeter of a rectangle is 50ft. If the length is one more than twice the width,
what is the length, width and area?
Answer: See explanation
Step-by-step explanation:
Let the width of the rectangle be x
Since the length is one more than twice the width. Therefore, the length will be: = 2x + 1
Perimeter of a rectangle = 2(length + breadth)
50 = 2(2x + 1 + x)
50 = 2(3x + 1)
50 = 6x + 2
6x = 50 - 2
6x = 48
x = 48/6
x= 8
Width = 8ft
Length = 2x + 1 = 2(8) + 1 = 16 + 1 = 17ft
Area = Length × Width = 17 × 8 = 136ft^2
ANSWER WHAT YOU CAN NEED THEM ASAP PLZ
Answer:
5. 23
6. 26
7. 20
8. 45
9. 15
10. 120
11. 60 full triangle is 180 and since it is equilateral you divide it by 3 you get 60
12. It is not possible. if you use the pyagorean theorem (not sure on spelling of that?) you get 16 so its not possible for it to be 12.
A bicycle has a listed price of $765.95 before tax. If the sales tax rate is 9.5%, find the total cost of the bicycle with sales tax Included.
Answer:
The total cost is $ 589.06
Step-by-step explanation:
Answer:
$838.72
Step-by-step explanation:
$765.95 x 1.095 = $838.72
PLEASEEE HELP WILLL GIVE BRAINLEAST!!!!!!
Which equation models the trend line?
A. y = –1.3x + 2
B. y = 1.3x + 2
C. y = –1.3x – 2
D.y = 1.3x – 2
Answer:
B. y = 1.3 + 2
Step-by-step explanation:
The slope is positive, and the y intercept is at positive 2.
What is the slope of the line that passes through the points (-10, –4) and (10, -29)? Write your answer in simplest form. Answer: Submit Answer undefined attempt i out of
Answer:
-5/4
Step-by-step explanation:
My mom likes to support my efforts on the cycling team, so she is always there to watch me race. At the last race, she became so excited that she promised to buy me 4 cupcakes for every three laps I completed. I completed a whole race, a whopping 24 laps! How many cupcakes did my mom buy me? Just write a number for an answer.
Answer:
I think that the answer is 32 cupcakes. I am sorry if this is wrong, but go subscribe to me at SSSniperwolf and LittleLia.
Step-by-step explanation:
What is the slope of a line that passes through (0,4) (6,13)
Answer: m=3/2
.
Step-by-step explanation:Use the slope formula to find the slope
m
.
Which number should each side of the equation 45x=8 be multiplied by to produce the equivalent equation of x = 10?
-4/5
1/5
5/4
5
Please answer FAST!!!
Answer:
5/4
Step-by-step explanation:
45 × ? = 10
Answer:
5/4
Step-by-step explanation:
.
If the mass of an object on Earth is 18kg what would the mass of the same object be on the Moon?
A. 18kg
B. 6kg
C. 108kg
D. 3kg
Answer: 18kg
Step-by-step explanation:
Mass is the amount of matter that a particular object has. First and foremost, we should note that a mass is not thesame as weight and that a mass is thesame everywhere.
In this scenario, since the mass of the object on Earth is 18kg, the mass of the same object on the Moon will slow be 18kg. The mass will not change.
I need help plzzzzzzzzz
I NEED THE ANSWER I HAVE 15 MINUTES LEFT!!
On a high school varsity baseball team, 5 players are sophomores, 11 are juniors, and 13 are seniors. The team selects 4 honorary co-captains by drawing names from a hat. What's the probability that all 4 co-captains come from the same class?
Answer:
4 in 33
Step-by-step explanation:
all you do is add the amount of people and the propability number first
4 in 33
find the area of the circle
Answer:
200.96
Step-by-step explanation:
A = 3.14(8^2)
3.14 * 8 * 8
3.14 * 64
200.96
Answer:
if it is 1.1 times 8 that would be 8.8, but if it is just 11 times 8 that would be 88.
Step-by-step explanation:
30 Points and will mark brainliest: Bruce has $1200 in the bank. He wants to Save a total of $3000 by depositing $40 per week from his paycheck. Write and use an equation to find how many weeks he needs to reach his goal.
A - 1200x + 40 = 3000; x=45 weeks
B - 1200 + 40x = 3000; x = 45 weeks
C - x(1200 + 40) = 3000; x = 45 weeks
D - x(1200 - 40) = 3000; x = 45 weeks
Simplify the following expression by showing any work
Answer:
4[tex]x^{4}[/tex][tex]y^{4}[/tex]z
Juan read 300 pages in 5 days which reading rate is equivalent
Answer:
600 pages in 10 days
Step-by-step explanation:
What is the perimeter of rectangle TUVW?
Perimeter = ... Units
Answer:
24
Step-by-step explanation:
w=7
l=5
7+7+5+5=24
196 divided by 3.5 show your work
The value of 196 ÷ 3.5 is 56
What is division?Division is the opposite of multiplication. If 3 groups of 4 make 12 in multiplication, 12 divided into 3 equal groups give 4 in each group in division. The main goal of dividing is to see how many equal groups are formed or how many are in each group when sharing fairly.
For example, if 50 apples are to be shared by 5 people , the number of apples allocated bto a person is 50/5 = 10 apples
196/3.5
to solve the we can multiply the numerator and denominator by 10 to make all whole number
= 1960/35
we can now simplify
divide through by 5
392/7
divide through by 7
= 56
therefore the value of 196/3.5 is 56
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