Answer:
The required expression is
Step-by-step explanation:
Consider the provided information.
She makes a base pay of $100 each day and is also paid a commission for each sale she makes.
One day, Lily sold 4 computers and was paid a total of $110.
Let z is the commission for each sale.
Therefore, 4z is the total commission after selling 4 computers.
Therefore, she is earning $2.5 for each computer sold.
Hence, the required expression is:
Where x is the number of computer she sells.
Answer:
Step-by-step explanation:
32n($1.75/n)=$56
Answer D
You are adding:
5a + 2 a+3
------------ + ---------
6a 3a
The LCD here is 6a, so we must mult. numerator and denom. of the 2nd fraction by 2:
5a + 2 2(a+3) 7a + 8
------------ + --------- = -------------- Please note: either write this result as
6a 2(3a) 6a shown, or include parentheses in your
answer: (7a+8) / (6a)
Factor the following:
12 x^4 - 42 x^3 - 90 x^2
Factor 6 x^2 out of 12 x^4 - 42 x^3 - 90 x^2:
6 x^2 (2 x^2 - 7 x - 15)
Factor the quadratic 2 x^2 - 7 x - 15. The coefficient of x^2 is 2 and the constant term is -15. The product of 2 and -15 is -30. The factors of -30 which sum to -7 are 3 and -10. So 2 x^2 - 7 x - 15 = 2 x^2 - 10 x + 3 x - 15 = x (2 x + 3) - 5 (2 x + 3):
6 x^2 x (2 x + 3) - 5 (2 x + 3)
Factor 2 x + 3 from x (2 x + 3) - 5 (2 x + 3):
Answer: 6 x^2 (2 x + 3) (x - 5)