Answer:
Step-by-step explanation:
10x+10y=-10
9x+10y=18
= 10x+10y=-10
-9x-10y=18
= x=8
step two is to find y:
10x+10y=-10
10(8)+10y=-10
80+10y=-10
10y=-90
y=-9
your answer:
(x,y)= (8,-9)
33.3 because 27/50=36/x and x=66.67 and thats how much as decayed after 36 hours but you want what is left so subtract from 100 and get 33.3
I'm pretty sure It's 5x - y = -6
Hope I helped!
The answer to your question is : C. 30
You subtract 72 and 42
72-42=30
Answer:
10/3
Step-by-step explanation:
-3-5/6/5/2=-10/3
decimal 0.33333 reaccuring
