A = P + I
2a = a + PTR/100
2a = a + 5aT/100
2a = a(1+T/20)
2=1+T/20
T=20 yrs
The answer is D (the last answer choice)
Answer:
4 gallons.
Step-by-step explanation:
Reading the top point on the graph we see that 48 gallons of white paint mix with 12 gallons of black Paint.
So 1 gallon of black paint is mixed with 48/12 = 4 gallons of white paint.