Customers of a phone company can choose between two servers plans for a long-distance calls. The first plant has $27 monthly fee
and charges an additional $0.07 for each minute of calls. The second plan has no monthly fee but charges $0.11 for each minute of calls. For how many minutes of calls with the cost of the two plans be equal?
1 answer:
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Answer:
17.5
Step-by-step explanation:
Given that:
20% apple juice drink is mixed with a 100% apple juice drink.
represents the concentration of apple juice in the drink when gallons of 20% drink are added to 2 gallons of pure juice.
Also, given that 6 gallons of 20% drink are added to the 2 gallons of pure juice.
To find:
The concentration of apple juice in the drink = ?
Solution:
Given the function:
and
In percentage, the concentration 17.5.