Sam needs to read 5 novels each month.
Let N be the number of novels Sam needs to read in M months.
Write an equation relating to .N to M Then use this equation to find the number of novels Sam needs to read in 15 months.
Let x be the number of novels Sam needs to read each month.
Therefore, N = Mx
Using N = Mx, we can find the number of novels Sam needs to read in 15 months:
N = 15x
Since Sam needs to read 5 novels each month (x = 5), we substitute x = 5 into the equation:
N = 15(5)
N = 75
Therefore, Sam needs to read 75 novels in 15 months.