When we divide 64 by 16 we obtain 4.
It it relation which we can use to write an eq.
Assume height = h and shoulder width = sw h=4sw - its our equation.
Now we can put sw=18.5 to find h.
h=4*18.5 h=75 inches - its the result
<span> -2x+2y+3z=0
</span><span>-2x-y+z=-3
</span><span>2x+3y+3z=5
Adding the third equation to the second and first, we get
5y+6z=5
2y+4z=2
Multiplying the second equation by -6/4 and adding, we get
2y=2 and y=1 by dividing both sides by 2. Plugging y=1 into 2y+4z=2, we get 2+4z=2 and by subtracting 2 from both sides we get 4z=0=z. PLugging y=1 and z=0 into </span><span>-2x-y+z=-3, we get -2x-1+0=-3 and by adding 1 to both sides, we get -2x=-2 and by dividing both sides by -2, we get x=1</span>
The answer is 4.8873, so you can say over 4 times as great, or almost 5 times as great for the first question.
And I think the second question could be because those over 35 years old have a more stable career, they're more developed skill-wise & worth more to their company so they're paid more, and of higher ranking in their professions, etc.