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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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181

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Answer:

Check the explanation

Step-by-step explanation:

Following table shows the calculations:

Delta, X      Southwest , Y            X^2              Y^2                      XY

45.96               38.76               2112.3216     1502.3376          1781.4096

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Now

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hope that answers your question

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