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satela [25.4K]
4 years ago
12

40 nails hold 5 rafters. 96 nails hold r rafters.

Mathematics
2 answers:
Pani-rosa [81]4 years ago
4 0
5 times 96 divided by 40 gives you 12. 96 nails hold 12 rafters.
jasenka [17]4 years ago
4 0
Ratio and proportion

nails:rafters=40:5
40/5=96/r
we can simplify left side
8/1=96/r
times both sides by r
8r=96
divide both sides by 8
r=12

12 rafters
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