Why is the result equal to 0.80.48

Why is the result equal to 0.80.48

Just solve the equation, let x + 49 * y = 24, X * 28-y = 21.6
The simultaneous equations obtained x + 49y = 24 28 * 49x-49y = 21.6 * 49
Add the two equations 1373x = 1082.4 x = 0.8
Substituting into equation 0.8 + 49y = 24, y = 0.48

What is the significance of the ratio of scale greater than 1, the ratio of scale less than 1, and the ratio of scale equal to 1

The ratio of scale is greater than 1, which indicates that the distance on the drawing is greater than the actual distance. It is mainly used in the drawing of some precision and small instrument parts (such as watch parts, etc.)
The ratio of scale is less than 1, which indicates that the distance on the map is less than the actual distance. Some large graphics and terrain are mainly reduced and drawn on small size paper, which is easy to carry and observe. The most common is the map
The ratio of scale is equal to 1, indicating that the distance on the map is equal to the actual distance

When is the scale equal to 1

The scale cannot be 1, because the scale is a scale, and its ratio can be 1. When the distance on the graph is equal to the actual distance, the scale is 1:1 when the ratio is 1