MATH SOLVE

9 months ago

Q:
# The first of two films lasted 3 minutes less than twice as log as the second. Together the two films lasted 132 minutes. How long was the first film

Accepted Solution

A:

Let x be time for second film and y be the time for first film. According the given conditions, we have:
$$y=2x-3$$
$$x+y=132$$
Substitute y=2x-3 in the second equation:
$$x+2x-3=132$$
Solving the above equation, we get:
$$x=45$$
Therefore:
$$y=2(45)-3=90-3=87$$
The first film was 87 minutes.