Amovie was 3 1/2 hours long. if lily turned the movie off 1/4 of the way through, how much time did she spend watching it?

7/8 of an hour

Step-by-step explanation:

We multiply the total of the movie, 3 1/2 hours, by the fraction she watched, 1/4:

1/4(3 1/2)

To multiply these, we convert the mixed number to an improper fraction.  We multiply the whole number, 3, by the denominator, 2; this gives us 6.  We add the numerator, 1; this gives us 7.  This makes it 7/2:

1/4(7/2)

To multiply fractions, we multiply straight across:

(1*7)/(4*2) = 7/8

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are