aurorasweetpea610
07.09.2021 •
Mathematics
![\frac{-8}{3\sqrt[8]{x^{7} } }](/tpl/images/2456/2929/4afc8.png)
express form of cx^{n}
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Ответ:
D (approximately)
Step-by-step explanation:
In total, Lara walked 6+2=8 miles in 1.5+1=2.5 hours, and thus her average speed was 8/2.5=3.2 miles per hour.
Similarly, Tim walked 2+4+6=12 miles in 0.5+1.5+1.5=3.5 hours, and thus his average speed was 12/3.5=3.42 miles per hour.