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7nadin3 [17]
3 years ago
10

In 30 seconds, 2-year-old Janay's heart beats 36 times.

Mathematics
2 answers:
Elis [28]3 years ago
8 0

Answer: 144 times

Step-by-step explanation:

In 30 seconds , it beats 36 times

Another 30 seconds - 36 times

Another 30 seconds - 36 times

Another 30 seconds - 36 times

Therefore , in two minutes , it will beat , 36 + 36 + 36 + 36 times

Therefore , it will beat 144 times .

Another Approach

30 Seconds - 36 times

1 second - 36/30 times

Since 120 seconds make 2 minutes , then

120 seconds - 36/ 30 x 120

= 144 times

skelet666 [1.2K]3 years ago
3 0

Answer: 144 beats

Step-by-step explanation

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