3x-4y=27
A.7x=29
B.x=-23
C.7x=35
D.4x=29
By manipulating and then adding the given system of equations, we can eliminate the variable 'y', resulting in the equation 7x = 35.
To eliminate the variable y in the given system of equations, we need to manipulate the equations to cancel out the y term. The system of equations is:
x + y = 2
3x - 4y = 27
We can accomplish y-elimination by first multiplying the first equation by 4 to match the coefficient in front of y in the second equation. The equations now are:
4x + 4y = 8
3x - 4y = 27
Now, we can add the two equations together, effectively eliminating the y-variable:
4x + 3x = 8 + 27
7x = 35
#SPJ3
Answer:
C
Step-by-step explanation:
x + y = 2
Subtract x from both sides;
y = -x + 2
3x - 4y = 27
Substitute y;
3x - 4(-x + 2) = 27
Distribute;
3x + 4x - 8 = 27
7x - 8 = 27
Add 8 to both sides;
7x = 35
Divide both sides by 7;
x = 5
Answer:
Step-by-step explanation:
Answer:
100
102
Step-by-step explanation:
Let the first even number be 2x
Let the next even number be 2x + 21/5 *(2x) + 2/3 (2x + 2) = 882/5 *x + 4/3 (x) + 4/3 = 88
Multiply by 15 to get rid of the fractions.2*3 x + 20x + 20 = 88 * 156 x + 20x + 20 = 1320 26x + 20 = 132026x = 1300x = 1300/26x = 502x = 1002x + 2 = 1021/5 * 100 = 202/3 * 102 = 34*2 = 6820 + 68 = 88
Use až 3.14 and round your answer to the nearest hundredth.
11 cm
----
15 cm
cubic centimeters
Answer:
570 cm³
Step-by-step explanation:
V=πr²h
V= 3.14*11²*15
V= 5699.1
Round answer:
V= 570 cm³
Answer:
Step-by-step explanation:
V=πr2h=π·112·15≈5701.99067
5701.99 is your final answer
Have a nice day:)
A) 24°
B) 30°
C) 72°
D) 108
These are the Choices:
The graph will always have zero x-intercepts.
The function will always have a minimum.
The y-intercept will always be the vertex.
The axis of symmetry will always be positive.