Question

The average adult heart pumps about 84 mL/s of blood at 72 bpm. Suppose you need to calculate how long it would take to average heart to circulate 3400 mL of blood. Set the math that. But don’t do any of it. Just leave your answer as a “math expression”.Also be sure your answer Includes all the correct unit symbols.Time=?

Answer 1

`\text{Time}=\frac{3400mL*1\text{second}}{84mL}`

Explanations:

According to the question, the average adult heart pumps about 84 mL/s of blood at 72 bpm. This can be expressed in equation form as:

84mL = 1 second ....................... 1

In order to calculate how long it would take the average heart to circulate 3400 mL of blood, this can be expressed as;

3400mL = x ..................................... 2

where;

x is the time it would take the average heart to circulate 3400 mL of blood.

Divide both equations 1 and 2 to set up the proportion equation;

`(84mL)/(3400mL)=\frac{1\text{second}}{x}`

Cross multiply the resulting proportion to get "x"

`\begin{gathered} 84mL* x=3400mL*1\text{second} \\ x=\frac{3400mL*1\text{second}}{84mL} \\ \text{Time}=\frac{3400mL*1\text{second}}{84mL} \end{gathered}`

Note that 72 beats per minute will not enter into the equation