Lucile runs the 50-meter dash in her track meet. How many millimeters long is the race?

each meter is a thousand millimeters

To find out how many millimeters long the race is, we need to convert meters to millimeters.

Since there are 1,000 millimeters in a meter, we can use this conversion factor to convert meters to millimeters.

The formula to convert meters to millimeters is:

Millimeters = Meters x 1000

In this case, Lucile runs the 50-meter dash. So, plugging in the values, we have:

Millimeters = 50 x 1000

Calculating this, we find that the distance of the race is:

Millimeters = 50,000

Therefore, the race is 50,000 millimeters long.