The data in the table represents the value of a savings account at the end of each year for 6 years. The relationship between th
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Answer:
Step-by-step explanation:
Let:
This is and exact equation, because:
So, define f(x,y) such that:
The solution will be given by:
Where C1 is an arbitrary constant
Integrate with respect to x in order to find f(x,y):
Where g(y) is an arbitrary function of y.
Differentiate f(x,y) with respect to y in order to find g(y):
Substitute into
Integrate with respect to y:
Substitute g(y) into f(x,y):
The solution is f(x,y)=C1
Solving y using quadratic formula:
Answer:
The Amount of tax paid on the cell phone is $11.9
Step-by-step explanation:
Given as :
The cost of the cell phone = x = $170
The tax rate of the cell phone = r = 7% of the phone cost
Let The Amount of tax paid on the cell phone = $y
<u>Now, According to question</u>
The Amount of tax paid on the cell phone = 7 % of cost of the cell phone
i.e y = 7% of x
Or, y = × x
Or, y = × $170
Or, y =
∴ y = 7 × 1.7
i.e y = $11.9
So,The Amount of tax paid on the cell phone = y = $11.9
Hence, The Amount of tax paid on the cell phone is $11.9 Answer