Answer:
Her brothers pulse rate is 76.
Step-by-step explanation:
95% of 80 is 76. That only means that her brother's pulse rate must be 76 beats per minute.
Answer:


Step-by-step explanation:
<u>Equations</u>
We have two cases where some variable is required to be found such that some condition is met. The first case is about finding the value of a that complies:

Rearranging

Factoring:

There are two solutions:

The second case requires us to find the value of x such that

Rearranging

This second-degree equation has no real roots. We'll offer the imaginary (complex) solutions:

Day = 24 hours, right?
36000/24 = 1500
If I put this into words:
36000 people per 24 hours = 1500 people per 1 hour
On average, 1500 people ride the bus per hour (or each hour)
It will be 50,000 =10*5,000
Answer:
B
Step-by-step explanation: