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Semenov [28]
3 years ago
15

Evaluate 15/r -1 when r = 5

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
4 0
\frac{15}{r}-1=\frac{15}{5}-1=3-1=2

2)
\frac{15}{r-1}=\frac{15}{5-1}=\frac{15}{4}=3\frac{3}{4}=3.75
Fynjy0 [20]3 years ago
4 0
15/r-1  
15/5-1  (substitute 5 for r)
15/4     (5-1 is 4)
3.75     (15/4 is 3.75)
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