Average 81602

A monthly fee of 60 crowns is paid for the phone and 3 crowns for each call. How many calls did we have when one call cost us an average of 4 crowns and 20 pennies?

Correct answer:

n =  50

Step-by-step explanation:

h=4.20 SK  h n=60+3 n 4.2 n=60+3 n  1.2n=60  n=1.260=50  n=50



Did you find an error or inaccuracy? Feel free to write us. Thank you!










Tips for related online calculators
Looking for help with calculating arithmetic mean?
Looking for a statistical calculator?
Do you have a linear equation or system of equations and are looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Units of physical quantities:

Grade of the word problem:

Related math problems and questions: