where N is the number of millions of passenger cars in the United States and t is the number of years after 1940.

In what year was the number of passenger cars triple the number of cars in 1940?

What is the equation that shows the relationship?

1995

To find the year when the number of passenger cars tripled the number of cars in 1940, we can use the given formula:

N = t + 1

Where N represents the number of millions of passenger cars in the United States, and t represents the number of years after 1940.

Since we are looking for the year when the number of cars tripled, we can calculate the number of cars in 1940 and then find when it is tripled.

Given that N represents the number of millions of passenger cars, and we are looking for when the number of cars tripled the number in 1940, we can set up the following equation:

3(N - N(1940)) = N(1940)

Where N(1940) represents the number of cars in 1940.

Now, let's solve for N(1940):

3(N - N(1940)) = N(1940)
3N - 3N(1940) = N(1940)
3N = 4N(1940)
N = 4N(1940) / 3

To find the year (t) when the number of passenger cars tripled, we need to substitute N into the following equation:

t = N - 1

Thus, the equation becomes:

t = (4N(1940) / 3) - 1

To calculate t, we need to know the value of N, which represents the number of millions of passenger cars in the United States. Without this information, we cannot determine the exact year when the number of cars tripled the number in 1940.