Given :
When price is $2 dollars he sells 2400 units .
When price is $8 dollars he sells 600 units .
To Find :
If x represents the price of trucks and y the number of items sold, write an equation for the demand curve.
Solution :
Two points are given :
Now , slope is given by :
Now , the equation of line containing these two points and slope -300 is :
Therefore , equation for the demand curve is 
.
Hence , this is the required solution .
12 -1/9d = 17
Subtract 12 from both sides
-1/9d = 5
Multiply both sides by -9:
D = -45
The answer is b. d = -45
Answer:
15,000
Step-by-step explanation:
1912* 8 =15,296
To the nearest thousand = 15,000
361 congruent square tiles would be needed to cover the square shaped floor.
<h3>Equation</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Since the number of tiles lying on both diagonals is 37. Let x represent the number of tiles on each side.
Counting one tile twice, there are:
- 37=2x-1
- x=19 tiles on each side.
19² = 361
361 congruent square tiles would be needed to cover the square shaped floor.
Find out more on Equation at: brainly.com/question/2972832
