Answer:
Step-by-step explanation:
3x - 18 = 8x - 9x - 21
3x - 18 = -x - 21
4x - 18 = -21
4x = -3
x = -3/4
answer is A
Answer:
Five= 9 One= 6 Twenty= 15
Step-by-step explanation:
A cashier has a total of 30 bills, made up of ones, fives, and twenties.
o+f+t=30,
The number of twenties is 9 more than the number of ones.
t=9+o,
The total value of the money is $351.
o+5f+20t=351
so we have
o+f+t=30, t=9+o,
o+5f+20t=351
f = 9, o = 6, t = 15
Answer:
5 (3x + 6y - 2)
Step-by-step explanation:
GCF is 5. Sorry late response
Answer:
-3901 silver coins (a loss)
Step-by-step explanation:
Probability of surviving the quest = 85.4% (Gain of 5,533 silver coins.)
If the insured were to die, the insurance company would pay a death benefit(incur a loss) of 59,086 silver coins.
Therefore:
The probability of not surviving the quest = 100%-85.4% =14.6%
Therefore, the expected value of this insurance policy to the insurance company

The expected value of this insurance policy to BIC is -3901 silver coins
Question:
Rewrite the function to reveal when sales of compact discs and $0.
Answer:
The cost in 2010 is $0
Step-by-step explanation:
Given

Required
Find x when 
This gives:


Expand

Factorize:


Solve for x


x represents time. So, it cannot be negative.

20 years after 1990 is: 2010. Hence, the cost in 2010 is $0