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Serjik [45]
3 years ago
9

1/4(r-5/2)=1/8 i need an answer cant figure it out

Mathematics
2 answers:
san4es73 [151]3 years ago
5 0
1/4(r - 5/2) = 1/8
Divide both sides by 1/8 :0
2(r - 5/2) = 1
r - 5/2 = 1/2
r = 1/2 + 5/2 = 6/2

r = 3 Answer
egoroff_w [7]3 years ago
5 0
\dfrac{1}{4}(r - \dfrac{5}{2}) = \dfrac{1}{8}

The LCD of both fractions is 8, so multiply both sides by 8.

8 \times \dfrac{1}{4}(r - \dfrac{5}{2}) = 8 \times \dfrac{1}{8}

2(r - \dfrac{5}{2}) = 1

Distribute the 2 on the left side.

2r - 5 = 1

2r = 6

r = 3
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