You take the first equation and make a value for y. So 6x + y =7 change it to :
y = -6x + 7
Now in the second equation replace the “y” with -6x +7 this is what it means to use substitution method . Your combined equation will now be :
8x + 9(-6x + 7) =17
Now do distributive property and you get :
8x + -54x +63 =17
Now combine like terms ;
-46x +63 =17
-46x =-46
x = 1
Now replace 1 for X value and we can get the value of Y .
Y=1
X=1
Answer:
Perimeter = Side1 + Side2 + Side3
4x + 3y = 5x - 3y + x + 4y + Side3
4x + 3y = 6x + y + Side3
-2x + 2y = y + Side3
Step-by-step explanation:
I WISH IT COULD HELP
Patterns: vertical : y = a(x - h)² + k horizontal: x = a(y - k)² + h
Look at the patterns above and remember these key points.
<span>1) if the x is squared, the parabola is vertical. It either opens up or down. </span>
if the y is squared, the parabola is horizontal. It either opens left or right.
2) if a is positive, the parabola opens up or to the right.
if a is negative, the parabola opens down or to the left
<span>3) the vertex is at (h,k). Be very careful. locations of h and k varies if the parabola is vertical or horizontal. its sign is also different in those positions</span>
Answer:
26 cm
Step-by-step explanation:
we can make an equation to find the lengths
2(x+7x-2) = 60
x : length of width
7x-2 : the length of length
2 : the two pairs of length and width
solving this equation, we get x = 4
but that is not the answer
we have to plug in x=4 into 7x-2
7*4-2 = 28-2 = 26
Answer:
Step-by-step explanation:
Sample space, n = 100
Let the number of students signed up for CSE 311 = a
Let the number of students signed up for CSE 312 = b
Let the number of students signed up for CSE 331 = c
Let the number of students signed up for CSE 332 = d
Probability of taking CSE 311, 
= 0.3
Probability of taking CSE 312, 
= 0.4
Probability of taking CSE 331, 
= 0.1
Probability of taking CSE 332, 
= 0.2
