Answer:
The answer is "
"
Step-by-step explanation:
Let the given value is: 


Answer:
y = -6
Step-by-step explanation:
Step 1: Define
8x - 9y = -50
x = -13
Step 2: Substitute and solve for <em>y</em>
8(-13) - 9y = -50
-104 - 9y = -50
-9y = 54
y = -6
Answer:
it can be a or d
Step-by-step explanation:
Answer:

Step-by-step explanation:
We can factor out a 1 from -3 to get
.
We know from simple arithmetic that
.
So, our answer is 
Step-by-step explanation:
3x + 5y = 50
x + 5y = 31
use substitution
x = 31-5y
3(31-5y) +5y = 50
93 -15y + 5y = 50
93 - 10y = 50
--10y = -43
y = 43/10 = $4.30 for kids
now solve for x
x + 5(4.30) = 31
x + 21.5 = 31
x = $9.5 for adults