Answer: 5 hours
Step-by-step explanation: c=35•h+25
25=40•h-35•h; 25=5•h
Well think about it this way -9 times what equals 252 you already know x is going to be a negative number because the outcome is positive so try doing the problem backwards 252/-9=-28 so x=-28
Expand and simplify
(x-3) (x-3) +2(x-3) -8=0
(x-3+2)(x-3)-8=0
(x-1)(x-3)-8=0
x^2 -4x +3-8=0
x^2 - 4x -5=0
x^2 -5x +x-5=0
x(x-5)+x-5=0
(x+1)(x-5)=0
x= - 1, 5
Answer:
-1
This is because in negative the numbers the higher the number, the lower its value
Step-by-step explanation:
Answer: 6.9% increase
Step-by-step explanation: original: 72
new: 77 5 x = 500 = 6.9%
72 100 72
