hany90
01.04.2020 •
Mathematics
Quincy bought a variety-pack that contained 20 game dice.he sorted the dice by color and found that 15% of the dice were red. how many red dice were in the pack?
f 2 g 3 h 5 j 15
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Ответ:
total time = upstream time + downstream time
he rowed the same distance both ways.
upstream time = D/4
downstream time = D/6
total time = D/4 + D/6 = 3D/12 + 2D/12 = 5D/12 = 3 hours
D = 3*12/5 = 36/5 or 7.2 miles
where D is the one-way distance. The total distance he rowed is 2*D = 72/5 or 14.4 miles
Step-by-step explanation: