Problema Solution
If Planet I is 31.3 million miles farther from the sun than Planet II, then Planet III is 25.2 million miles farther from the sun than Planet I. When the total of the distances for these planets from the sun is 192.8 million miles away, how far away from the sun is Planet II?
Answer provided by our tutors
let planet 1 = x
let planet 2 = y
let planet 3 = z
x+y+z = 192.8
x = y+31.3
z=x+25.2
z = y+31.3+25.2
z= y+56.5
192.8 = y+56.5 + y +y+31.3
192.8 = 3y + 87.8
15 = y
planet 2 is 15 million miles away from the sun