Explain and write ratios.
If a computer display mode is 640 pixels (picture elements) by 480 pixels, we can write that as a ratio in simplest terms (640:480). Another practical example includes the 50:1 gas to oil ratio for a two cycle engine for boating, which represents 50 units of gasoline to every unit of oil.
Describe and write proportions. Use proportions to solve a problem.
If we have two computers, and Computer A transmits five web pages in two seconds to a server, and Computer B transmits twenty pages in ten seconds to a server, are these two computers transmitting at the same speed? (Are these two rates proportional?)
Please help me with these problems, I don't understand.