garretthyatt123
07.11.2019 •
Mathematics
Unit test
it takes andrew 720 seconds to take a shower. he spends an additional 420 seconds eating breakfast.
how many minutes does it take andrew to take a shower and eat breakfast?
minutes
[metric reference sheet]
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Ответ:
19 minutes
Step-by-step explanation:
We should know that: 1 minute = 60 seconds
∵ It takes Andrew 720 seconds to take a shower
converting to minutes ⇒∴ 720 seconds = 720/60 = 12 minutes
He spends an additional 420 seconds eating breakfast.
converting to minutes ⇒∴ 420 seconds = 420/60 = 7 minutes
So, The time taken for a shower and eat breakfast = 12 + 7 = 19 minutes
Ответ:
17
Step-by-step explanation: