Answer: 8 weeks
Step-by-step explanation:
He originally had $315 in his account. This figure increased to $955. It therefore increased by:
= 955 - 315
= $640
If he deposited $80 every week, the number of weeks it would take to deposit $640 is:
= 640/80
= 8 weeks
Answer:
The expected value of each warranty sold is $23.8.
Step-by-step explanation:
0.8% probability of the product failling.
If the product fails, the company will lose 400 - 27 = $373. So a net value of -373.
100 - 0.8 = 99.2% probability of the product not failling.
If the product does not fail, the company gains $27.
What is the company's expected value of each warranty sold?
We multiply each outcome by its probability.
0.008*(-373) + 0.992*27 = 23.8
The expected value of each warranty sold is $23.8.
$1,763.25 X 6 = $10,579.50
$10,579.50 X 1.045^3 = $12,072.97
$12,072.97 - $4,360.00 = $7,712.97
The balance after the withdrawal is $7,712.97
Answer:
6y-2y^2-6
Step-by-step explanation:
3y^2 +4y-5-(5y^2 -2y+1)
3y^2 +4y-5-5y^2 +2y-1
3y^2-5y^2 + 4y+2y-5-1
-2y^2+6y-6
6y-2y^2-6
You have:
x: the number of reams of white paper purchased
y:the number of reams of blue paper purchased
Then, you have the following system of equations:
x+y=10
3.50x+3.75y=36
When you solve the system shown above, you obtain:
x=6
y=4
The answer is: 6 reams of white paper
