Re: Middle School Math
Yes, I think it is easiest to keep variables out. Just basic division and multiplication should do:
2 + 2.5 = 4.5 they complete 4.5m/s
20 / 4.5 = 4.44s thus, taking them 4.44s of walking
4.44s * 2 = 8.88m 4.44s of walking @ 2m/s = 8.88m
4.44s * 2.5 = 11.1m 4.44s of walking @ 2m/s = 11.11m
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