<p>Please explain in detail how to do this question. thanks!</p>
<p>A model airplane is built to scale so that one sixth of an inch on the model airplane is equal to 1 foot on the real airplane. If a part on the model is one eighth of an inch wide, what is the width in inches of the corresponding part on the real airplane?</p>
<p>I know you have to set up porportion…the answer is 9 but I don’t know how they got it…</p>
<p>okay. the proportions are like this.</p>
<p>(1/6) / (1/8) = (12) / (x)</p>
<p>1/6x = 1.5
solving for x gives us 9. </p>
<p>Always remember to have the same measurements when solving propotional problems. </p>
<p>Please, anyone correct me if I’m wrong on this problem, but I’m pretty sure I’m write. ;)</p>
<p>oops I forgot to say to “cross-multiply” the two sides of the equation.</p>
<p>Boo’s answer is correct… I actually read the 1 foot as 1 inch at first :p</p>