Q63. - Algebra 1

Question

The world’s largest passenger plane, the Airbus A380, was first used by Singapore Airlines in 2005.

How many passengers will a similarly set-up 747 transport, if that airline will see the A380 transporting some 555 passengers, 139 more than a similarly set-up 747?

Step-by-Step Solution

Answer

The number of passengers is 416.

Step 1. Given information.

Passengers transported by A380 = 555.

Passengers transported by A380 are 139 more than that of set up 747.

Step 2. Introduce the variable.

Consider the passengers transported by setting up 747 be x.

Step 3. Write the equation.

The equation for passengers transported by setting up 747 will be:

 $x+139=555$

Step 4. Solve the equation.

Take the equation $x+139=555$.

Subtract from the right-hand side of the equation.

 $$\begin{gathered} x+139-139=555-139 \\ x=555-139 \end{gathered}$$ 

So,

$x=416$