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henry purchased a prepaid phone card for 20.00. calls cost 10 cents a minute using this card. how much credit is left on the card after henry uses it for 40 minutes of calls

Respuesta :

pkcreeperhead

Answer:

6.00

Step-by-step explanation:

amount of money in card =20.00

cost of call for 1 min=10 cents

cost of call for 40 min=40*10=14.00

amount of money left in card=20-14=6.00

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