How many passengers can be seated on a plane with r rows, if each row consists of d double seats and t triple seats?
r (2d + 3t)
To find the number of passengers that can be seated on a plane with r rows, where each row consists of d double seats and t triple seats, you need to calculate the total number of seats in the plane.
The number of seats in each row can be calculated by adding the number of double seats (d) and the number of triple seats (t), which gives us (d + t) seats per row.
Then, to find the total number of seats in the plane, you need to multiply the number of rows (r) by the number of seats per row (d + t).
Therefore, the formula to calculate the total number of passengers that can be seated on the plane is:
Total number of passengers = r * (d + t).
Using this formula, you can plug in the values for r, d, and t to find the answer to your question.