First markdown reduces the item to 0.80×495=$396.
The second markdown reduces it to 0.90×396=$356.40.
Answer:
16.5
Step-by-step explanation:
264 / 16 = 16.5
C: use the distance formula to find QT, then multiply by 4
In order to add 1/x + 1/y, they need to have the same denominator.
To do this, we can multiply both sides by the variable the denominator is missing, which keeps the expression true and allows it to be solved.
Multiply 1/x by y.
y/xy + 1/y
Multiply 1/y by x.
y/xy + x/xy
x + y/xy
<h3>The simplified form of the given expression is (x + y)/xy</h3>
Working Formula:
V = s^3
Given:
dV/dt = -4 cubic meters per minute
V = 125 cubic meters
Required: ds/dt (rate of change of edge per minute) at V = 125 m^3
Solution:
Differentiate, equation below
V = s^3
dV/dt = 3*s^2 (ds/dt)
-4 = 3*s^2 (ds/dt)
ds/dt = -1.33/s^2 -----------> eq. (1)
V = s^3
(125)^0.33 = (s^3)^0.33
s = 5 ------------> eq. (2)
Substitute eq. (2) to eq. (1), we get
ds/dt = -1.33/(5)^2 = -0.053 meters per minute
<em>ANSWER: -0.053 meters per minute</em>