Question

Two years of local internet service costs $\$ 685$, including the installation fee of $\$ 85$. What is the monthly fee?

Answer 1

Hint: First, we have to know about the concept of multiplication and division.
Since multiplicand refers to the number multiplied. Also, multiplier refers to the number multiplied by the first number. Have a look at an example; while multiplying $5 \times 7$ the number $5$ is called the multiplicand and the number $7$ is called the multiplier.
The process of the inverse of the multiplication method is called the division. Like $x \times y = z$ is multiplication thus the division sees as $x = \dfrac{z}{y}$. We usually need to memorize the multiplication tables in childhood so it will help to do mathematics.

Complete step-by-step solution:
Also, we need to know about the concept of the conversion of days, months, years.
There are $365$ days in one year. There are $12$ months in one year.
Given that two years of the local internet service costs $\$ 685$, which includes the installation fee of $\$ 85$.
We need to find the monthly fee.
Hence to find the local internet service without installment is $\$ 685 - \$ 85 = \$ 600$ for two years.
To convert the two years into one year, divide the value by the number $2$ then we have the one-year fee as $\dfrac{{600}}{2} = \$ 300$
Since we know that the conversion of $12$ months in one year can be represented as $1M = \dfrac{1}{{12}}Y$
Hence, we have $1M = \dfrac{{300}}{{12}}Y$ (fee respectively to the monthly)
Hence by division, we get $1M = \$ 25$
Therefore, the monthly fee is $\$ 25$.

Note: Also, the other two operations, Addition is the summing of two or more than two numbers, or values, or variables, and in addition, if we sum the two or more numbers a new frame of the number will be found, also in subtraction which is the minus of two or more than two numbers or values example $2 - 3 = - 1$ (larger number signs stays constant)