Answer:
There is a decrease of 0.75 sales per day
Step-by-step explanation:
Given:-
- The price of item = p
- The number of sales = x
- The relationship between "p" and "x" is given below:
4p+4x+2px=56
Find the rate at which x is changing when x=2, p=6, and dp/dt=1.5 The rate at which x is changing is [ ] sales per day
Take the time derivative (d/dt) of the entire given expression and apply chain rule on d/dt ( 2px ). Since both "p" and "x" are only functions of time "t":
d/dt
4p+4x+2px=56
4*dp/dt + 4*dx/dt + 2*(x*dp/dt + p*dx/dt)=0
Use the given values x=2, p=6, and dp/dt=1.5 to determine dx/dt
4*1.5 + 4*dx/dt + 2*(2*1.5+6*dx/dt)=0
6+4dx/dt + 2*(3+6dx/dt)=0
6+4dx/dt + 6+12dx/dt=0
12+16dx/dt=0
12=-16dx/dt
dx/dt= 12/-16
= -0.75
Answer:
Step-by-step explanation:
In order to find this answer, you need to know how much miles he drives on one hour.
The steps are down below
1. Find how much he drives in one hour
754/ 13=58
he drives 58 miles every hour
now you do 464/ 58 which you get 8.
Thefore the answer is 8.
I hope this helped.
If it is wrong, blame me i have not done them in a long time.
Check the picture below.
notice, both triangles have a right-angle, so we can use HL on them.
now HL says that if the hypotenuses and one side in each are equal, they are congruent.
well, you can pretty much count how many units for each right off the grid, are the (red) hypotenuses equal?
side CD in green is equal for both since is shared by both anyway.