Answer:
40%
Step-by-step explanation:
40% of 55 is 22 and 55+22=77
hoped this helped :)
Felipe subtract 3x from both side to get rid of x on one side. Ik this isn’t part of the answer but the correct way to do this would be to subtract 2x from each side after adding 8 to each side of the equation
So you convert the fraction into a decimal then multiply it by 100 so the percentage would be 180%
X² - 10x = 46
10/2 = 5; 5²+ 25 add 25 to both sides
x² - 10x + 25 = 46 + 25
so the number you have to add to complete the square is 25.
80% of 80 is 64. Hope this helps:)