5x + y = 15
y = -5x + 15
Substituting y= -5x+15 from first equation into second equation:
3x + 2y = 16
3x + 2·(-5x + 15) = 16
3x - 10x + 30 = 16
-7x + 30 = 16
7x = 30 - 16 = 14
x = 2
Substituting x=2 into the first equation:
5x + y = 15
5(2) + y = 15
10 + y = 15
y = 15 - 10
y = 5
So your final answers are x=2 and y=5.
Answer:
um im pretty sure y = -15 and x = -17 but im pretty sure i did that wrong too lol sorry if it is wront
Step-by-step explanation:
Answer:
100 feet squared: can u plz give me the brainliest answer!!!!!!!!! plz!!!!!!!!!!!
Step-by-step explanation:
Area of triangle: base x height divided by 2.
25 x 8 = 200
200/2 = 100
Have a nice day!!!!!!!!!! :-)
<u>KA</u>
You FOIL the binomials out to get a quadratic.
