Answer:
1) When x is 1, y is 4, and vice versa
2) When x is -6, y is 42, and when x is 7, y is 114
3) When x is -2, y is 2, and when x is 8, y is 42
Step-by-step explanation:
1)

which can be rearranged as
.
Substituting this lone y into the first equation, you get:

Move everything to one side:

Factor:



2)
which can be rearranged as
.

Let's use elimination this time and subtract the first equation from the second:

Factor:



3)


Let's set the two equations equal to each other through substitution:

Move everything to one side:

Factor:



Hope this helps!
Answer:
6 candy bards
Step-by-step explanation:
$3.12 (total)
each one is $0.52
3.12=0.52b
divide on both sides
3.12/0.52
=6
6 candy bars
(summarized, divide 0.52 by 3.12)
The ratio of three numbers are 2:3:4.
Let the rational between the three numbers be x, hence the three numbers be 2x, 3x,and 4x.
If their average is 36, what are the numbers
We know the average = sum of the numbers / no. Of numbers.
(2x+3x+4x) /3=36
9x/ 3= 36
3x =36
X= 36/ 3
X= 12
The rational is 12
Answer the three number are 24, 36, and 48.
HOPE THIS HELP!!
Answer: 3
/4
Step-by-step explanation:
Exact Form: 3
/4
Decimal Form:
0.75
Elena should put a point where the two circles intersect and draw line segments connecting that point to points A and B to finish her triangle.