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atroni [7]
3 years ago
15

Teresa purchased a prepaid phone card for $20. Long distance calls cost 16 cents a minute using this card. Teresa used her card

only once to make a long
distance call. If the remaining credit on her card is $14.72, how many minutes did her call last?
II minutes
Mathematics
1 answer:
shtirl [24]3 years ago
8 0

Answer:

33 minutes. 20- 14.72=5.28

Step-by-step explanation:

20- 14.72=5.28. then divide 5.28 by .16(cents per minute) to get 33 minutes

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Answer:

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Since the slope of DF and EF are not opposite reciprocals,  ΔDEF is not a right triangle.

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