Question

Marcos can seal 5 envelopes every minute. Jerry can seal 7 envelopes every minute. They both seal envelopes for 1 hour nonstop.

How many more envelopes does Jerry seal than Marcos? Show your work.

1. kimchi2
120 more envelopes
Step-by-step explanation:
Given the following:
⇒ Marcos can seal 5 envelopes every minute.
⇒  Jerry can seal 7 envelopes every minute.
⇒ They both seal envelopes for 1 hour nonstop.
How many more envelopes does Jerry seal more than Marcos?
Solution:
Note that: 1 Hour = 60 Minutes
Thus, we can multiply envelopes by 60 minutes
Marcos → 5 × 60 = 300
Jerry → 7 × 60 = 420
Now we have to subtract to see how many more envelopes does jerry seal more than marcos.
420 – 300 = 120
Base on the result, we can conclude that jerry seal 120 more than marcos.
Kavinsky

2. Euphemia
120
Step-by-step explanation:
Since,
Marcos seal 5 envelopes every minutes
Jerry seal 7  envelopes every minutes
Both seal envelopes for 1 hour
Knowing that 1 hour = 60 minutes
Thus,
Marcos = 5 × 60 = 300
Jerry = 7 × 60 = 420
Now subtract
420 – 300 = 120
Hence, Jerry seal 120 more than Marcos.
~Lenvy~