May 30th.
Since the date is past the 25th day of the month so buyers get another month for the cash discount. The cash discount ends on the 10th day of the SECOND month so the credit period will be 20 days after the discount period.
X+y=28
xy=7
xy=7
divide both sides by x
y=7/x
sub 7/x for y in first equation
7/x+x=28
times both sides by x
7+x^2=28x
minus 28x from both sides
x^2-28x+7=0
use quadratic formula
if
ax^2+bx+c=0
x=
x=
x=
sub for y
y=7/x
y=
the reciprocals are
and
times first one by
and second by 7/7
evaluate the plus and minus yourself please, my head hurts
When the multiples of the equations in a system is added or subtracted, the resulting equation together with any of the original equation will result in the same answer.
Hence, the system of equations
x + 4y = 2
7x = 14
will also have a solution of (2, 0).
Answer:
x=23 degrees
Step-by-step explanation:
We know that the sum of interior angles in a triangle is equal to 180 degrees, and we see that one of the angles is 67 and the other one is 90 degrees. So we can do this two ways, ones more complicated then the other that you may not of learned yet
The first way:
You simply do 180-67-90 to get 23
Second way:
We can use the exterior angle theorem to know that 67+x=90 degrees so you simplify on both sides and you get 23 again.