Linda purchased a prepaid phone card for $30. Long distance calls cost 17 cents a minute using this card. Linda used her card only once to make a long distance
call. If the remaining credit on her card is $26.09, how many minutes did her call last?

23 minutes

Step-by-step explanation:

First, take away $26.09 from $30. This will show you how much was spent on the call. You should get $3.91.

Next, it may be easier to convert this total all to cents. So 100 cents in every dollar...100 cents times 3 = 300 cents. Then add the other 91 cents to get a total of 391 cents.

Then, you need to divide 391 cents by 17 to get the minutes. And you'll get 23 minutes!

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.