Answer:
A
Step-by-step explanation:
Subtract all the numbers from 360 and there you go!
4x=20-8y
x=5-2y now use this value of x in the second equation...
3(5-2y)+6y=15
15-6y+6y=15
15=15 This is true for any y or x value.
So there are infinitely many solutions as the two equations describe the same line.
Answer:
b1=
b2=
Step-by-step explanation:
120 grams half life at 45 days would be 60 then half life of 60 in another 45 days (90 total) should be 30 grams
