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Vadim26 [7]
3 years ago
7

Use a system of equations to solve a problem involving distance, speed, and time.

Mathematics
1 answer:
Yuki888 [10]3 years ago
7 0

Answer:

Speed of boat in still water is 26km/hr

Step-by-step explanation:

Let the speed of boat in still water be x and speed of stream by y.

Speed at which it went upstream would be (x-y) and the speed at which it went downstream would be (x+y). According to question x+y=24 and x-y=28. x=26 and y=-2.

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8 0
2 years ago
Please show me how to do this problem
sleet_krkn [62]

Answer:

Hi there, you can use Pitagoras relationship to solve this up (Without using any other "tool".

Point A is located wheter in (-6,8) or could be located in (-6,8)

Step-by-step explanation:

Point A is 10 units away from the origin, and its x coordinate is -6, using this information, you can draw a triangle  from 0 to -6 (the basis) and using 10 as the hypotenuse, so, you have this equation:

H^{2} = x^{2} +y^{2}

solving for Y variable, you have this

y=±\sqrt{10^{2}-(-6)^{2}  }

Note the combined sing ±, meaning that y=8 is a valid answer and that y= -8 is also a valid answer.

Hope It helps

5 0
3 years ago
Which number line correctly shows 1 3/10, 1 5/10, and 9/5? (I cant paste all four Images so please try figuring it out!)
Arte-miy333 [17]

Answer:

its B)

i know because i did the test not to long ago

5 0
4 years ago
What is the value of y in the equation 3(3y − 12) = 0? <br><br> 4<br><br> 5<br><br> 6<br><br> 9
tatuchka [14]
The equation that is given in the question is:
3 (3y - 12) = 0
9y - 36 = 0
9y = 36
y = 36/9
   = 4
The value of y in the equation is 4. The correct option among all the options that are given in the question is the first option.
5 0
3 years ago
Amelia pays $24 to rent a boat at the lake for up to six hours she constructs the inequality and number line below to represent
liubo4ka [24]
Money= how many hours
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$8=2h
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$24=6h
l hope that helps :)
5 0
3 years ago
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