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Mathematics 11 Online
OpenStudy (anonymous):

if a human heart beats 15 times in 10 seconds, how many times would it beat in a minute?

Parth (parthkohli):

There are 60 seconds in a minute.

Parth (parthkohli):

Solve a proportion for me, please.\[15:10=x:60 \]

Parth (parthkohli):

Applying logic, you multiply means and the extremes.\[10x = 60 \times 15 \]And keep going.

OpenStudy (anonymous):

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