Answer:
y = 0
x = -4
( x, y ) = ( -4 , 0 )
Step-by-step explanation:
y = 5x + 20
y = -2x - 8
Substitute
5x + 20 = -2x - 8
Add 8 on both sides
5x + 20 + 8 = -2x - 8 + 8
5x + 28 = -2x
Subtract 5x on both sides
5x - 5x + 28 = -2x - 5x
28 = -7x
Divide by -7 on both sides
28/-7 = -7x/-7
-4 = x
Now that you have x, you can substitute it in one of the equations that was given to find the value of y.
y = 5(-4) + 20
y = -20 + 20
Or....
y = -2(-4) - 8
y = 8 - 8
They will both be 0 no matter what
Point form = ( -4, 0 )
Hope this helped
(5/15)(4/14) = 4/42 = 2/21
a right angle (90 degrees)
8038.65
Lucy needs to invest $55,194.16
Opt A and D
65% is 100 based number, this means that 65% is the same as 65/100, or 0,65.
65% of 20 is obtained performing the following operation:
0,65 * 20
or
65*20/100
Any of them
