Adam has 28 model cars and airplanes. He has 16 model cars. The rest of his models are airplanes. Write and solve an equation to find how many model airplanes Adam has

Mathematical equation is

Adam has  models of  airplane

Step-by-step explanation:

Let the total number of models of cars and air planes be represented by "Z"

Let the total number of models of cars be represented by "X"

Let the total number of models of air planes be represented by "Y"

Now the mathematical equation showing the relation between X, Y and Z is as follows -

Given ,

Substituting the given values in above equation, we  get -

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

2

step-by-step explanation: