Answer:
$55.902
Step-by-step explanation:
To properly answer the question, we need to evaluate each of the payment conditions.
Firstly:
There is a $6 charge each month
Secondly:
For the first 500kwh, there is a charge of 6.726 cents per kWh.
Total amount charged here will be 500 * 6.726 = 3,363 cents = $33.63
Thirdly:
There is a charge of 8.136 cents for kwh above 500kwh. Here we have 200kwh more than the 500kwh threshold.
The amount charged here is thus 200 * 8.136 = 1627.2 cents = $16.272
Total amount charged is thus : 6 + 16.272 + 33.63 = $55.902
A system of equations with infinitely many solutions is a system where the two equations are identical. The lines coincide. Anything that is equal to
will work. You could try multiply the entire equation by some number, or moving terms around, or adding terms to both sides, or any combination of operations that you apply to the entire equation.
You could multiply the whole thing by 4.5 to get
. If you want, you could mix things up and write it in slope-intercept form:
. The point is, anything that is equivalent to the original equation will give infinitely many solutions x and y. You can test this by plugging in values x and y and seeing the answers!
The attached graph shows that four different equations are really the same.
Answer:
The cost of insurance change 29,6% between 2015 and 2018.
Step-by-step explanation:
We can start by defining C as the cost of insurance in 2015.
Then, we know it rose 13% between 2015 and 2016:
It then dropped by 2% between 2016 and 2017:
And then it increases by 17% between 2017 and 2018:
We can conclude the cost of insurance change 29,6% between 2015 and 2018.