Question

Gina’s heart rate is 70 beats per minute. Which algebraic expression shows the number of beats in h hours?

choices
4200h
3600h
60h
70h

Answer 1

Answer:

the answer wil be 70h per minute

Answer 2

Given,

The heart rate of Gina$\[ = 70\]$

Solution,

Understand that here an algebraic expression is defined as a combination of variables and constant along with mathematical operations.

Therefore,

$\[\begin{array}{l} \Rightarrow f\left( h \right) = 70 \times 60 \times h\\ \Rightarrow f\left( h \right) = 4200h\end{array}\]$

where, h is in hours.

Hence, the required expression is $\[4200h.\]$