Question

The maximum size of a text message is 160 characters. A space counts as one character. A. Write an equation in two variables that represents the remaining (unused) characters in a text message as you type. Let x represent the number of typed characters and r represent the number of remaining characters.

Answer 1

r= 160-c

Explanation:

Answer 2

y = 160 - x

Explanation:

Given :

Maximum text character = 160

x = number of typed characters

y = Number of characters left or unused characters

Unused characters = 160 at the start of a fresh message page, which reduced as characters are being typed.

Hence,

Unused characters = (maximum characters - number of typed characters)

y = 160 - x