Let x represent the amount to be added. The total amount of tin will be
15%·20 + 10%·x = 12%·(20+x)
(15%-12%)·20 = (12%-10%)·x
3%·20/2% = x
30 = x
30 pounds of 10% tin must be added to get a 12% mixture.
<em>Here we are required to determine the initial monthly fee charged by the electric company.</em>
The initial fee charged by the electric company is; C = $10
To solve this, we need to evaluate the slope and intercepts of the equation of the straight line graph of the relation.
y = mx + c.
- where m = slope of the relation.
- and c = <em>intercept = the initial fee charged by the electric company</em>.
- y = <em>Monthly charge at each time</em>.
To find the slope;
By substituting m into the equation y = mx + c, alongside a pair of values of usage and monthly charge, we can obtain the intercept, c (i.e the initial fee charged).
Therefore, m = 0.12 , y = 82 and X = 600;
we then have;
Therefore, the initial fee charged by the electric company is; C = $10.
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Answer:
6x + -2y or 2y = 4
Step-by-step explanation:
<u>I think</u>
Answer:
Answer is 261
Step-by-step explanation:
-4r+5y-14 r=0 y=55
insert "r" and "y" values into equation
=-4(0)+5(55)-14
evaluate;
-4(0)=0
5(55)=275
so, now the equation would look like this;
=275-14
<h2>=261</h2>
Answer:
This driver's insurance premium should be at least $990.43.
Step-by-step explanation:
We are given that the probability of a driver getting into an accident is 6.4%, the average cost of an accident is $13,991.05, and the overhead cost for an insurance company per insured driver is $95.
As we know that the expected cost that the insurance company has to pay for each of driver having met with the accident is given by;
The Expected cost to the insurance company = Probability of driver getting into an accident 
Average cost of an accident
So, the expected cost to the insurance company = 
= $895.43
Also, the overhead cost for an insurance company per insured driver = $95. This means that the final cost for the insurance company for each driver = $895.43 + $95 = $990.43.
Hence, this driver's insurance premium should be at least $990.43.
