45 multiply 0.22 = 9.9
45-9.9 = 35.1
Markdown is subtract
The resultant velocity relative to the air is still 395 km/hr east.
The resultant velocity relative to the passengers is still zero.
The resultant velocity relative to the ground is (395 east) + (55 west) = 340 km/hr east.
16= 4x - 4
Combine like terms in this case (16 & 4) because they are only numbers
1) Pass the (-4) to the lther side so (-4) will become (4)
2) Add 16+4=4x
3) Once you already add, the result of the addition, divides by (4x)
The answer: 16=4x - 4
1) 16+4= 4x
2) 20= 4x
3) 20/4=x
4) 5=x
So the answer is "c"
