Ok so I am gonna help you with this question I hope it helps you okay!
If Mark starts with 7 tickets, and Hannah gives him 6 more, then Mark has 13 tickets total. The equation for this problem looks like this:
7+6=13.
Mason, on the other hand, has none, because Hannah didn’t give him any, and the question never mentions him buying any.
3x(9x² + 11x - 5) + 2(2x³ + 11x - 5x²) - 5x² + 8
Simplify.
27x³ + 33x² - 15x + 4x³ + 22x - 10x² - 5x² + 8
Add like terms.
(27x³ + 4x³) + (33x² - 10x²) + (-15x + 22x) + 8
Simplify.
31x³ + 23x² - 7x + 8
~Hope I helped!~
Answer
X=7
Steps:
Subtract 6
21=3w
Divide by 3
X=7
Question 1: The average of 10 numbers is -5. A new number is added to the list making the average -6. What is the new number?
To solve this question, first note that the sum of these numbers is -5*10 = -50. If the average of 11 numbers is -6, we must have that they add up to -6*11=-66. Therefore, the new number is -66-(-50) = -66+50 = -16.
Question 2: It is hard to explain why, but just know that the answer is No Solution. I think you must have made a typo, like maybe the product is -24?
