For a long-distance person-to-person telephone call, a telephone company charges $ 0.21 for the first minute, $ 0.17 for each additional minute, and a $ 1.59 service charge. if the cost of a call is $ 2.31 comma how long did the person talk?

4 minutes

Step-by-step explanation:

0.21+1.59=1.8

2.31=0.17x+1.8

Subtract 1.8 from both sides

0.51=0.17x

Divide both sides by 0.17

3=x

3 minutes plus the original minute spent talking

They spent 4 minutes total talking on the phone

what is the question here

step-by-step explanation:

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.