17trees/1ton of paper saved.
your original number was 340trees/20tons of paper. Just divide by 20
Umm this is math not French or whatever is the language
Answer:
Step-by-step explanation:
Both numbers of the ratio units used to express the ratio in ten years are 2 higher than at present. Thus, each ratio unit must stand for 5 years. That would make their current ages ...
Sunitha: 7·5 = 35
Raseeda: 8·5 = 40
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If you can't figure the answer right away from the change in ratio units, then you may need to write a couple of equations:
- s/r = 7/8
- (s+10)/(r+10) = 9/10
These can be translated to standard form, which may make some methods of solution easier:
These have solution (r, s) = (40, 35).
