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ahrayia [7]
3 years ago
14

Question 5 of 10 Suppose that there were a negative correlation between the variables a and b. If bis 30 when a is 8, which of t

hese is most likely to be the value of b when a is 16? O A. 60 O B. 15 C. 45 O D. 30​
Mathematics
1 answer:
Fudgin [204]3 years ago
8 0

Answer:

whats?

Step-by-step explanation:

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On a certain​ river, a paddleboat travels 12 miles upstream ​(against the​ current) in the same amount of time it travels 20 mil
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Given :

a paddle boat travels  upstream = 12 miles

a paddle boat travels  downstream = 20 miles

speed of the current = 2 miles per ​hour

Let the speed of the boat =x

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the distance for downstream D= (boat speed + current speed) * time

Plug in all the values and variables in the distance

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For downstream 20 = (x+2)t then t = \frac{20}{x+2}

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