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Two communications companies offer calling
plans. With Company X, it costs 35¢ to connect
and then 5¢ for each minute. With Company Y,
it costs 15¢ to connect and then 4¢ for each
minute.
Write and simplify an expression that represents
how much more Company X charges than
Company Y, in cents, for n minutes.

Respuesta :

Answer:

(20 + n)¢

Step-by-step explanation:

With Company X, it costs 35¢ to connect  and then 5¢ for each minute.

So, for n minutes of calling the company X charges, C(x) = (35 + 5n)¢

Again,  With Company Y,  it costs 15¢ to connect and then 4¢ for each  minute.

So, for n minutes of calling the company Y charges, C(y) = (15 + 4n)¢.

Therefore, the company Y charges for n minutes of calling less than company X is [(35 + 5n) - (15 + 4n)]¢ = (20 + n)¢ (Answer)

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