Answer:
p = -0.05m + 22
Step-by-step explanation:
As given in question,
The relation between the price and demand can be given by,
where is p is price and x is demand.
Since in order to sell 300 cards the price has to be fix at $7.
So,
7 = 300m+b <u> </u> (1)
And for every additional card they need to drop the price by $0.05.
So,
7-0.05 = 301m+b
=>6.95 = 301m + b<u> </u> (2)
Subtracting equation (1) from equation (2), we will have
6.95 - 7 = 301m - 300m
=>m = -0.05
By putting the value of m in equation (1), we get
7 = 300.(-0.05)+b
=> b = 22
So, the linear equation that show the relation between price and demand is given by
p = -0.05m + 22
Divide by 6 on both sides to have the variable by itself. the answer is 8.
5(-3.4k - 7) + (3k + 21) = -17k - 35 + 3k + 21 = -14k - 14
Answer: 4/5 is your slope.
Step-by-step explanation:
A.38/2
Dividing helps a lot in these situations.
Hope I helped!
