1 lb / 0.45 = 2.22
so approximately 2.22 kilograms per pound
divide price per pound by kilometers per pound
1.44 / 2.22 = 0.648
round to 0.65, so it costs $0.65 per kilogram
We use the trigonometric identities in this problem.
=(sin(t)cos(4π)+sin(4π)cos(t))−(cos(t)cos(8π)−sin(t)sin(8π)) +<span>tan(t)+tan(5π)/1−tan(t)tan(5π)
=</span>sin(t)+0−cos(t)+0+ tan(t)1−0<span>=sin(t)−cos(t)+tan(t)
=</span>a−b+c
You just multiply 450 by .18 and it'll give you the 18% you have to add to 450.
So the equation would look like:
450(.18)=81
Which you then add:
450+81= 531
So 531 is your total!
