Erm
x+y=6
xy=12
x+y=6
y=6-x
sub back
xy=12
x(6-x)=12
6x-x^2=12
x^2-6x=-12
x^2-6x+12=0
quadratic formula
for
ax²+bx+c=0
for
x²-6x+12=0
a=1
b=-6
c=12
and remember that √-1=i
x=3+/-i√3
the numbers are 3+i√3 and 3-i√3
no real numbers tho
When solving system equations, we can use substitution method or elimination. Today I'm using substitution method.
First name the 2 equations.
3x + y = 3 (1)
x + y = 2 (2)
Now pick one equation and express one algebra in forms of the other.
From (2),
x = 2 - y (3)
Now substitute (3) into (1),
3(2-y) + y = 3
6 - 3y + y = 3
6 - 2y = 3
6 - 3 = 2y
y = 1.5
Now substitute y = 1.5 into (2)
x + 1. 5 = 2
x = 2 - 1.5
x = 0.5
Therefore the answer is x = 0.5 and y = 1.5
Answer:
5/6
Step-by-step explanation:
1/6 + 1/6 = 2/6 TYPE A wood
1/4 + 1/4 = 2/4 TYPE B wood
2/6 + 2/4= ...
2/4 reduces to ?/2
That would be 1/2 because 4 divided by 2 is 2 & 2 divided by 2 is 1.
1/2= ?/6
Its 3/6 because we did 2 x 3 to get 6 and we do the same to the number 1. So we do 1 x 3 = 3
Now we have 3/6 + 2/6!
This is very easy now! We just do 2 + 3 which gets 5.
OUR ANSWER IS 5/6!! Hope this helps! plz mark as brainliest!
Answer: 27
Explanation:
P = 2(l+w) = 2 · (9 + 4.5) = 27
