$90 because you take the discounted price then divide it by .40 (40%)
Answer:
r = .03 or 3%
Step-by-step explanation:
Interest = Principal x Rate x Time
15000 = 50000(10)r
15000 = 500000r
r = 15/500
r = .03 or 3%
Answer:
The answer is x=9 and/or x = -12
Step-by-step explanation:
This is a quadratic formula meaning that you must take the a value (1) b value (3) and the c value (108) and plug it into the quadratic formula.

which simplifies to -3 add or subtract the sqrt of 441 divided by two.
From the definition of logarithm, we know that:

In this case

and

so: