Question

Sabrina is making bookmarks and notepads to sell as a fundraiser for her class. Each bookmark,
B
, takes her
45
minutes to make. Each notepad,
N
, takes her
15
minutes to make. Sabrina has at most
5
hours this weekend that she can spend making these two items.

Which is a constraint for this situation?
A.
45
B
+
15
N
≥
5


B.
45
B
+
15
N
≤
5


C.
45
B
+
15
N
≤
300


D.
45
B
+
15
N
≥
300

Answer 1

Each bookmark takes 45 minutes and each notepad 15 minutes, so total time is 45B + 15N. "At most 5 hours" means this total ≤ 5 hours = 300 minutes. So the correct constraint is

45B + 15N ≤ 300

Answer: C.