fahad7007
26.02.2021 •
Mathematics
Donna purchased a prepaid phone card for $15. Long distance calls cost 8 cents a minute using this card. Donna used her card only once to make a long distance call. If the remaining credit on her card is $11.08, how many minutes did her call last?
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Ответ:
49 mins
Step-by-step explanation:
11.08=15-0.08x
11.08-15=-0.08x
-3.92=-0.08x
x=49
Ответ:
we know that
The inscribed angle is the half of the arc it comprises.
In this problem
m∠EFD=
we have
substitute the value
m∠EFD=
m∠EFD=
therefore
the answer is
m∠EFD=