Answer:
\(\frac{4}{5}\) seconds.
Step-by-step explanation:
We have been given that hear beat takes 0.8 second.
We have to convert it in fraction form
We can write 0.8 in fraction as
\(\frac{0.8}{1}\)
Multiply numerator and denominator by 10
\(\frac{0.8\times10}{1\times10}\)
On simplifying,
\(\frac{8}{10}\)
Write in simplest form
\(\frac{4}{5}\)
Therefore, the heart takes \(\frac{4}{5}\) seconds.
