city high school had a student reduction and lost 3/4 of its students. if 87 of its students were left after the reduction, how
1 answer:
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Answer:
Step-by-step explanation:
Given
per minute
Required
Determine the cost of a 10 minutes call
First, we need to determine the expression for the call charges.
Let:
- x = minutes
- y = charges
The relationship between x and y is:
i.e.
1 is subtracted from the total minutes because the first minute has a fixed rate.
For a 10 minutes call
<em>Hence, the charges for a 10 minutes call is: Rs.43</em>
