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lyudmila [28]
3 years ago
9

Ruben swims several times per week in a lake near his home. Last summer, the average water temperature was 20 °C. This summer, t

he average water temperature was 16 °C. What was the percent of decrease in the temperature?
Mathematics
1 answer:
docker41 [41]3 years ago
3 0
16/20 = 0.8
0.8*100= 80
100-80= 20%
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A 20% solution of fertilizer is to be mixed with a 50% solution of fertilizer in order to get 180 gallons of a 40% solution. How
anyanavicka [17]

Answer: 60 gallons of the 20% solution and 120 gallons of the 50% solution should be mixed.

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Let x represent the number of gallons of 20% solution that should be mixed.

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How to find the volume of the cone
gavmur [86]

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