His heart beats 86,400 times within a 24 hour period.
60 minutes in 1 hour, so you would multiply 8 hours by 60 mins, giving you 480 mins. 24 hours- 8 (time he's asleep) will give you 16. 16 * 60 will give you 960 minutes. 480 minutes (when he's asleep) * 50 beats a minute = 24,000.
960 (when he's awake) * 65 beats a minute = 62,400. add 24,000 and 62,400 = 82,400 beats in 24 hours.
(16,5) it should be
16 input
5 output
if you went to 5 ont he y-axis and keep going till it hits the line the x seems to be 16.
im deeply sorry if this is wrong.
Answer:

Step-by-step explanation:
So we have the equation:

And we want to find x when y is 9.
So, substitute y for 9 and solve for x:

Multiply:

Add 18 to both sides:

Divide both sides by 2:

So, our answer is 20.5
Answer:
ax - by = k
Step-by-step explanation:
A literal equation is an equation made up of variables representing numbers that can be changed
ax - by = k is a literal equation because there are no numbers
Letters stand for each item
A.show trends clearly
b. allow viewers to make predictions about data
c. use percentages to display data
d. show specific values of data
hope this helped you : )brainliest me plzz