You can stuff 321 envelopes in 1 hour and 15 minutes. At this rate, how many envelopes can you stuff in 2 hours?

Question

How would you write an equation?

Answer 1

you want to convert hours to envelopes.

321 envelopes = 1.25 hours

So, the conversion factor is 321 env/1.25 hr

2 hr * 321/1.25 env/hr = 513 envelopes