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andreyandreev [35.5K]
4 years ago
12

A paddle boat can move at a speed of 2 ​km/h in still water. The boat is paddled 16 km downstream in a river in the same time it

takes to go 8 km upstream. What is the speed of the​ river?
Mathematics
1 answer:
MaRussiya [10]4 years ago
6 0
<span>going downstream - 

t = 14/(2 + v) 

going upstream - 

t = 7/(2 - v) 

14/(2 + v) = 7/(2 - v) 

(2 + v)/2 = 2 - v 

v = 2/3km/h</span><span>
</span>
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The number of goats to the number of sheep in a field is in the ratio 5:8. Farmer Giles has 32 sheep. How many goats does he hav
Angelina_Jolie [31]
Given ratio: 5 (goats) : (to) 8 (sheep.)

The question asked that if Giles had 32 sheep, then how many goats would he have. We can figure out how many goats he would have by cross multiplying fractions.

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-  x  -
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To figure out the z variable, we simply cross multiply 5 and 32, which gets us 160. Now we divide it by 8. Whatever we get for z, that is our answer for goats. The answer would be <span>20.
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3 years ago
Which polynomial represents a sum of cubes
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6 0
3 years ago
The expression ax2-bx=0 is? and has the solution x=0
LUCKY_DIMON [66]
Lets analyze the equation:
<span>ax^2 - bx = 0
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8 0
3 years ago
The distance traveled, in feet, of a ball dropped from a tall building is modeled by the equation d(t) = 16t2 where d equals the
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Assuming that by "16t2" you mean 16t^2:


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The average rate of change is the ratio between these two:


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3 0
3 years ago
Read 2 more answers
Question 3
zhuklara [117]

Answer:                     -30

Step-by-step explanation: -13 subtract 17 = -30

5 0
3 years ago
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