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umka2103 [35]
2 years ago
5

What is the mathematical answer for -15-15-15-13?

Mathematics
2 answers:
zysi [14]2 years ago
7 0
-58...................….........?.???????
RUDIKE [14]2 years ago
7 0
Your answer would be -58
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A boat takes 3.6 h to travel downstream from its dock to a fishing hole. If the water were still, it would have taken 4.5 h to m
salantis [7]
Given:

t1 = 3.6 h
t2 = 4.5 h
x = speed of boat
y = speed of water

Required:
a) Expression of distance traveled with moving water with 3.6h
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b) Solve for y
c) Percent of boat's speed is the water current

Solution:

Working formula: 
distance = velocity*time

a) For travelling downstream, we get the equation

d = (x +y)*3.6

For travelling upstream, we get the equation

d = (x-y)*4.5

b) Setting the distance as equal for travelling upstream or downstream, we arrive at the equation of

(x+y)*3.6 = (x-y)*4.5
3.6x + 3.6y = 4.5x - 4.5y
8.1y =0.9x
y = x/9

c) percentage = 1/9*100% = 11.1%

<em>ANSWERS: a) d = (x+y)*36; d = (x-y)*4.5
</em>
                     <em>b) y = x/9
</em>                     <em>c) 11.1%</em> 

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2 years ago
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Either it probably is 4 which is the months or years that the toddler is and 36.57 would be the amount of words each month or year.
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Can you conclude that this parallelogram is a rectangle? Explain.
maxonik [38]

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malfutka [58]

Answer:

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Step-by-step explanation:

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Can someone pls answer this question what is 12 +z=15
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12 + z = 15


12 - 12 + z = 15 - 12


0 + z = 3


z = 3


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3 years ago
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