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Sonbull [250]
3 years ago
13

Lena purchased a prepaid phone card for $20. Long distance calls cost 21 cents a minute using this card. Lena used her card only

once to make a long distance
call. If the remaining credit on her card is $12.23, how many minutes did her call last?
Mathematics
1 answer:
marysya [2.9K]3 years ago
5 0

Answer:

Step-by-step explanation:

Since she used  $ 7.77

for her only call and since one call costs  $0.21 per minute, you you can compute number of minutes she spent for her last call.

How did we find $7.77:

$20-$12.23= $7.77

Now, $7.77 : $0.21= 37 minutes

Her call lasted 37 minutes

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4 0
3 years ago
Read 2 more answers
Due in 1 hour, plz help
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Answer:

1. 12/1= rate of change

Step-by-step explanation:

1.

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hope its right

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Rudiy27

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