If 3a +5b = 10 and 5a + 3b = 30, what is the average (arithmetic mean) of a and b?

If 3a +5b = 10 and 5a + 3b = 30, what is the average (arithmetic mean) of a and b?

Question:

If 3a +5b = 10 and 5a + 3b = 30, what is the average (arithmetic mean) of a and b?

	3.5
	2.5
	4.5
	4
	2.5

Answer:

2.5

Last Updated:

08/11/2021 - 03:24