Answer: x = 2, y = 4/2
Step-by-step explanation:
Solve the System of Equations
x + 3y = 6 6x − 6y = 4
Subtract 3y from both sides of the equation.
x = 6 − 3y 6x − 6y = 4
Replace all occurrences of x with 6 − 3y in each e quation.
Replace all occurrences of x in 6x − 6y = 4 with 6 − 3y.
6 (6 − 3y) − 6y = 4
x = 6 − 3y
Simplify 6 (6 − 3y) − 6y.
36 − 24y = 4
x = 6 − 3y
Solve for y in the first equation.
Move all terms not containing y to the right side of the equation.
−24y = −32
x = 6 − 3y
Divide each term by −24 and simplify.
y = 4/3
x = 6 − 3y
Replace all occurrences of y with 4/3 in each equation.
Replace all occurrences of y in x = 6 − 3y with 4/3
x = 6 − 3 ( 3 )
y= 4/3
Simplify 6 − 3 ( 4 )
x = 2
y = 4/3
The solution to the system is the complete set of ordered pairs that are valid solutions.
(2, 4 /3 )
The result can be shown in multiple forms.
Point Form: 2, 4 /3
Equation Form: x = 2, y = 3
3,9, 13, 8, 10, 2
what’s the Median?
someone help?
There are 25 different dogs that need to be walked. Ashley randomly chooses 5. How many different combinations are there?
Answer:5?
Step-by-step explanation:
Answer:
53130
Step-by-step explanation:
It's a combination question.
You just have to calculate:
[tex]C=\frac{25P5}{5P5}[/tex]
That means: [tex]\frac{25x24x23x22x21}{5*4*3*2*1}[/tex]
And that would equal: [tex]\frac{6375600}{120} = 53130[/tex]
help please its due at 12:59
Answer:
30centimeters
Step-by-step explanation:
1.25x
12*2=24months in 2 years
1.25(24)=30cen
Answer:
a strand of hair will grow 30cm in two years
Step-by-step explanation:
I hope this helps!
I really need help. I dont understand
Answer:
D
Step-by-step explanation:
Which representation shows y as a function of x?
Answer:
D vote brainliest
Plz help me w this I’m so confused :/
Can someone help me with this equation
1a+ 6b + 4c +7a =
Answer:
8a+6b+4c is the right answer
Answer:
=1a+6b+4c+7a
=1a+7a+6b+4c
=8a+6b+4c
Calculate the Distance between the ordered pairs (-2, 3) and (4, -7). Use graph paper if necessary.
If f(x)=x³-2x²-73x-70, which of the following is not a factor of f(x)?
A) (x+1)
B) (x-10)
C) (x+10)
D) (x+7)
Answer:
C. (x + 10)
Step-by-step explanation:
At a basketball game, a team made 58 successful shots. They were a combination of 1- and 2-point shots. The team scored 99 points in all. Write and solve a system of equations to find the number of each type of shot.
Step-by-step explanation:
Step-by-step explanation:
1.Right
2.Left
3.Bottom Middle
ben earns 140 dollars by selling 70 hot dogs how much does ben need to sell to get 300 dollars
Answer:
Ben would earn $280 by selling 140 hot dogs.
Step-by-step explanation:
You do this by multiplying 140 x 2,
If this equals 280, then you would do 70 x 2 to make it even
If this equals 140,
Ben will sell 140 hotdogs, and make $280
Answer:
150 hot dogs
Step-by-step explanation:
1 hot dog is $2 so 140 hot dogs=$280 so if u add 10 hot dogs that would be $20 so $280+$20=$300 which is equal to 150 hotdogs
complete the equation
3/10 = 3 divided by ?
must be in fraction form
Answer:
3/10 ÷ 3 = 3/30 as simplified as 1/10 in fraction form. 3/10 ÷ 3 = 0.1 in decimal form.
A cyclist is travelling at an average speed of 15km/HR. How long will it take to travel a distance of 52 1/2km
Answer:
3.5hour
Step-by-step explanation:
Average speed = Distance/Time
Given
Distance = 52 1/2 km
Speed = 15km/hr
Required
Time
Substitute the given values in the formula
Time = (52 1/2)/15
Time= 105/2 * 1/15
Time = 105/30
Time = 3.5hour
hence it will take 3.5hr to travel a distance of 52 1/2km
pls answer dis question pls
Answer:
No solution
Step-by-step explanation:
Find the x- and y-intercepts of 4x-9y=-12
Help help help help
Answer:
c. 12
Step-by-step explanation:
if the pentagons are similar they have a common factor.
the factor between 16 cm and 8 cm is 2, so 6*2 is 12.
Need help with this thanks
Answer:
d
Step-by-step explanation:
Identify the perimeter and area of a square with diagonal length 24in. Give your answer in simplest radical form!!!
10n+0.3=0.1n+0.3
8th grade solving lineaar equations w/ rational coeffinents
Answer: n = 0
Step-by-step explanation: Let's solve for n, according to the linear equation given, this way:
10n + 0.3 = 0.1n + 0.3
10n - 0.1n = 0.3 - 0.3 (Like terms)
9.9n = 0
n = 0/9.9
n = 0
Nolan has 4 times as many pens as Fiona, and Fiona has 6 times as many pencils as Nolan. If Nolan has a total of 23 pens and pencils, and so does Fiona, which of these is a number of pens or a number of pencils that either Nolan or Fiona has?
Nolan has 20 pens and 3 pencils, while Fiona has 5 pens and 18 pencils.
Amount determinationGiven that Nolan has 4 times as many pens as Fiona, and Fiona has 6 times as many pencils as Nolan, to determine, if Nolan has a total of 23 pens and pencils, and so does Fiona, the number of pens and pencils that either Nolan or Fiona has, the following calculation must be performed:
Pen = APencil = BN = 14A + 9B = 23 /// F = 3.5 + 19.5N = 12A + 11B = 23 /// F = 3A + 20BN = 20 A + 3 B = 23 /// F = 5 A + 18 B20 / 4 = 518 / 6 = 3Therefore, Nolan has 20 pens and 3 pencils, while Fiona has 5 pens and 18 pencils.
Learn more about amount determination in https://brainly.com/question/14342345
A 50-question test contains 20 true-or-false questions. The rest are multiple-choice. What is the ratio of true-or-false to multiple-choice questions? plz help me
Answer:
The ratio is 20:30, or 2:3 in simplest form
Plzzzzz give me Brainliest!
Answer:
2/5 or 40%
Step-by-step explanation:
20 out of fifty is hard so make it 40 out of 100 and it's easy 40%
Help me ASAP pls! Convert the measurement. Round the nearest hundredth.
Answer: 252
Step-by-step explanation:
(x5 + 5x4 – x3 – 22x2 + x + 6) =
(x2 + 3x - 2)
Answer:
x = 4/13
Step-by-step explanation:
I hope this helps!
are 9x+15 and -9x-15 equivalent expressions
Answer:
Step-by-step explanation:
Yes!
PLEASE PLEASE HELP, I AM TIMED! What is the equation to the function? Explain.
Step-by-step explanation:
General equation: y = 2 + c/(x - 1)
When x = 4, y = 4.
=> (4) = 2 + c/(4 - 1), c = 6.
Hence the equation is y = 2 + 6/(x - 1).
Select the number line that correctly shows the calculation for |-4|.
I will give branliest!!!
Answer:
A.
Step-by-step explanation:
When Zakir threw a beach ball to his friend, its horizontal velocity changed as it traveled through the air. The relationship between the elapsed time, t, in seconds, since Zakir threw the ball, and its horizontal velocity, V(t), in cm/s is modeled by the following function: V(t) = 4 x(5/8)^t Complete the following sentence about the rate of change of the horizontal velocity of the ball. Every second, the horizontal velocity of the ball grows/shrinks v by a factor of Report a problem Stuck? Watch a video or use a hint.
Answer:
5/8
Step-by-step explanation:
For khan the full correct answer is Shrinks by 5/8.
Every second, the horizontal velocity of the ball shrinks v by a factor of 5/8.
What is a Function?A function is a law that relates a dependent and an independent variable.
The horizontal velocity in relation with elapse time is given by
[tex]\rm V(t) = 4 x(\dfrac{5}{8})^t[/tex]
The rate of change of the the horizontal velocity of the ball is given by [tex]\rm (\dfrac{5}{8})^t[/tex]
Every second, the horizontal velocity of the ball shrinks v by a factor of
[tex]\rm (\dfrac{5}{8})^1[/tex]
= (5/8)
To know more about Function
https://brainly.com/question/12431044
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Pls answer this question
Answer:
[tex]x=\frac{21}{4}[/tex]
Explanation:
[tex]\frac{2x+3}{15}\cdot \:10=\frac{9}{10}\cdot \:10[/tex]
[tex]2x+3-3=\frac{27}{2}-3[/tex]
[tex]\frac{2x}{2}=\frac{\frac{21}{2}}{2}[/tex]
[tex]x=\frac{21}{4}[/tex]
[tex]=5,25[/tex]
(Its the same as the answer above; though I wrote in fraction equation)
Someone plz help me T^T
Can someone help me on this question?
Answer:
x = 19.6
Step-by-step explanation:
By applying cosine rule in ΔBCD,
cos(30)° = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{BC}{BD}[/tex]
[tex]\frac{\sqrt{3}}{2}=\frac{BC}{16}[/tex]
BC = [tex]8\sqrt{3}[/tex]
Now, by applying sine rule in ΔBAC,
sin(45)° = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
[tex]\frac{1}{\sqrt{2}}=\frac{AB}{BC}[/tex]
[tex]\frac{1}{\sqrt{2}}=\frac{x}{8\sqrt{3}}[/tex]
x = [tex]8\sqrt{6}[/tex]
x = 19.59
x ≈ 19.6