Answer:
x=-12,y=3
Step-by-step explanation:
1/2x+6y=12
y=x+15
since y=x+15
substitute y in first equation, we have
1/2x+6(x+15)=12
open the bracket
1/2x+6x+90=12
1/2x+6x=12-90
x/2+6x= -78
13x/2=-78
13x=2×-78
x=-12
Now x=-12, put x=-12 in the second equation, we have
y=x+15
y=-12+15
y=3
hope it helps
Answer:
10 of 1
Step-by-step explanation:
just think about it
5y + 3 > -7 y + 13
Subtract 3 from both sides
5y > -7y + 13 - 3
Add 7y to both sides
5y + 7y > 13 - 3
12y > 10
Divide by 12, which is positive so the sign doesn't flip
y > 10/12 = 5/6
Answer: y > 5/6
Answer:
1.50
Step-by-step explanation:
divide 2 add 5 divide 2 again
