Debra purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Debra used her card on
ly once to make a long
distance call. If the remaining credit on her card is $22.48, how many minutes did her call last?
1 answer:
The answer is 47 minutes.
You basically imagine this: Debra has a phone card for $30. She used x minutes every 16 cents. You end up with $22.48.
30 - (0.16x) = 22.48
You can basically graph that equation and the x-intercept will show you your answer. x = 47
You might be interested in
I think that would be one . A=s*s A=1*1
Answer: 13
Step-by-step explanation:
65-13=54
54/4=13
Order of operations
Answer: A
Step-by-step explanation:
If you put 0 in for x, then you would be dividing by 0. Dividing by 0 is always undefined.
Answer:
25 Or A
Step-by-step explanation:
Answer:
58
Step-by-step explanation:
I think