W + 19 = 49 for w = 30 :
30 + 19 = 49
hope this helps !.
Answer: x=−6,2
Step-by-step explanation:
Answer: Y= -x/5 + 32/5
Step-by-step explanation:
Answer:
8/3
Step-by-step explanation:
i put equations as this:
x+40 = y
where x is galllons of pure mixture and y is the gallons of the new mixture
the other equation i id was:
x+0.2(40) = 0.25y
x+8 = 0.25y
y = 4x+32
solve using substitution
(x+40) = 4x+32
x = 4x-8
-3x = -8
x = 8/3
