Idkk dmh shi fw food demic
Answer:
3x+15
Step-by-step explanation:
When it says "the sum of a number three times", it means 3x, because the x stands for multiplication and the problem says the sum sum is between 3x and the number 15. So your equation is 3x+15. Hope this helps ;)
By changing the denominator to 8 you will get m-6/8 = 12/8
remove the denominators
m - 6 = 12
m = 12 + 6
= 18
The answer is 6.47. It was really easy to find, you just look up hypotenuse calculator, fill in the numbers, and done. So try that next time, it is just faster than waiting for people to answer.
If I'm reading your question correctly: "<span>F(x)=7x+9/8x-9 when -f(x)," then all you have to do to find -f(x) would be to put a negative sign in front of ALL
of 7x + 9 / (8x-9):
9
- f(x) = -7x - --------
8x-9</span>
