Chapter 6.4, Problem 57SPR

To determine

Find the length of a flight.

Answer to Problem 57SPR

  $31.2ft$

Explanation of Solution

Given information:

A twin-engine airplane has a length of $78m$ and a wingspan of $90m$ . A scale model is made with the wingspan of $36m$ .

Calculation:

Here, a twin-engine airplane has a length of $78m$ and a wingspan of $90m$ .

Now, let us suppose the length of the flight be $x$ .

  $\begin{array}{l}\frac{x}{36}=\frac{78}{90}\\ 90x=36\left(78\right)\\ Dividebothsidesby90:\\ \frac{90x}{90}=\frac{36\left(78\right)}{90}\\ x=\frac{36\left(78\right)}{9\left(10\right)}\\ x=31.2\end{array}$

Hence, the length of the flight is $31.2ft$ .