0.25 r – 0.125 + 0.5 r = 0.5 + r
4 Answers

0.25 r – 0.125 + 0.5 r = 0.5 + r
r/4 – 1/8 + r/2 = 1/2 + r
0 = r/4 + 5/8
r/4 = 5/8
r = 5/2 = 2.5

You can do this equation using decimals or fractions; I’ll show you how to do it with decimals first.
0.25r – 0.125 + 0.5r = 0.5 + r ————> Combine like terms
0.75r – 0.125 = 0.5 + r ———–> Subtract r from both sides
0.25r – 0.125 = 0.5 ————–> Add 0.125 to both sides
0.25r = 0.625 ——————> Divide 0.25r from both sides
r = 2.5
Here’s how to do it with fractions
0.25r – 0.125 + 0.5r = 0.5 + r ———> Convert each decimal to a fraction
(1/4)r – (1/8) + (1/2)r = (1/2) + r ———> Combine like terms
(3/4)r – (1/8) = (1/2) + r ———–> Subtract r from both sides
(1/4)r – (1/8) = 1/2 ————> Add (1/8) to both sides
(1/4)r = 5/8 —————> Divide each side from (1/4)
r = 5/2
So R = 2.5
Or R = 5/2

0.25 r – 0.125 + 0.5 r = 0.5 + r
Group like terms
0.25r + 0.5r – r = 0.5 + 0.125
0.25r = 0.5 + 0.125
r = (0.625) / (0.25) = 2.5
r = 2.5

0.75rr=0.5+0.125
0.25r=0.625
r=0.625/0.25=5/2
Source(s): experience