Answer:
2(a-2)
Step-by-step explanation:
12 + 2a – 8 = 2a +12-8
= 2a-4
=2(a-2)
Answer:
$28
Step-by-step explanation:
2x4=8
4x5=20
20+8=28
hope this helps :)
Answer:
C
Step-by-step explanation:
Plotting the points in a sketch quickly shows that the vertices are not at right angles to each other, thus excluding rectangle and square whose vertices are at right angles.
The best selection is a rhombus
Since a $5 decrease in price increases customers by 20 we can say that we have two points:
(125,100) and (120,120), from these we can find the slope or rate of change of customers as a function of price...
m=20/-5
m=-4
m=-4
c(p)=-4p+b, now we can use (125,100) to solve for b
100=-4(125)+b
100=-500+b
600=b, so our number of customers as a function of price is:
c(p)=600-4p
Revenue will simply be the number of customers times the price charged per customer...or p*c(p):
r(p)=600p-4p^2
We can find price that creates maximum revenue by finding when the derivative is equal to zero...
dr/dp=600-8p
dr/dp=0 only when
0=600-8p
8p=600
p=75
So the price that maximizes revenue is $75.
The answer is 2,500. You must multiply both of the equations and add them together. The answer will be 2500.
