Answer:
x=1/2, y=2;
Step-by-step explanation:
First pair:
2x-5y =-9
4x+5y=12
Add them together:
6x=3
x = 1/2
2(1/2) - 5y =-9
1-5y = -9
1+9=5y
y=10/5=2
Answer:
24
Step-by-step explanation:
-3x(4x-2)
-3*-8
+24
-*-=+
+*-=-
-*+=-
210,064,050 is your answer
Answer:
180 dollars
Step-by-step explanation:
.6 = 60%
multiply = "of"= ()
.6 (300) = 180