2a - 5d = 30 solve for d
subtract 2a to both sides
2a - 5d - 2a = 30 - 2a
simplify
-5d = 30 - 2a
divide both sides by -5
-5d/-5 = (30 - 2a) / -5
d = -6 +0.4a
d = 0.4a - 6
Answer:
60/80= 0.75
75%
if you are satisfied with my answer, please mark brainliest :D
Step-by-step explanation:
66.5
I took a test and got it right
