Answer:
2/3
Step-by-step explanation:
The slope is given by
m = (y2-y1)/(x2-x1)
= ( -10 - -6)/( -9 - -3)
= ( -10 +6)/( -9 +3)
= -4/-6
= 2/3
The total cost of 1000 CDs is: 6.45*1000=6450.
The revenue is the product of the number of CDs sold, n, and the selling price of each is 12.95.
P=12.95n-6450
Answer: 16%
Method:
To get a percent ( out of 100 ) - make it a fraction.
8/50 then multiply it by 2 = 16/100
16/100 as a percentage is 16%
5 years ago, Karl was 20 and James was 5. 20-5=15 and 4*5=20. Now, Karl is 25 and James is 10. In 4 years, Karl will be 29 and James will be 14.
Answer:
-7x(x + 4)
Step-by-step explanation:
Not sure exactly what you're doing with this, but I know you're not solving it for x because there's no " = " there so I am assuming you're simplifying it as much as possible. I'm going with that.
First thing is to distribute through the parenthesis by multiplying 4x by 3x and then 4x by -7 to get:
Now combine like terms to get
The last thing you could do now is pull out what's common between each of those terms which is -7x. When you do that, you're left with
-7x(x + 4)