Respuesta :

In 4 seconds, number of beats = 28
In 1 sec., it is = 28/4 = 7

Now, In 30 seconds, it would be: 30 * 7 = 210

In short, Your Answer would be: 210 beats

Hope this helps!
bellbell252
[tex] \frac{28}{4}= \frac{30}{x} [/tex]? Solve for x.

28x=4*30

28x=120

x≈4.29

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