Answer:
r = .6
Step-by-step explanation:
2.2r +0.47 = 1.79
Subtract .47 from both sides
2.2r +0.47- .47 = 1.79 - .47
2.2r = 1.32
Divide by 2.2 on each side
2.2r/2.2 = 1.32/2.2
r =.6
1.79 - .47 = 1.32
1.32/2.2 = r
R= 0.6
