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Elenna [48]
3 years ago
8

There are 729 rolls of Ribbon in 9 boxes each box has the same number of rolls of ribbon how many rolls are in each box?

Mathematics
2 answers:
Fittoniya [83]3 years ago
5 0
There are 81 rolls of ribbon in each of the 9 boxes. I can’t see all the options so I hope this helps!
Alex_Xolod [135]3 years ago
3 0
Just divide 729 by 9 = 81
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olga_2 [115]
We have two unknowns: x and y. Now, we have to formulate 2 equations. The first would come from the use of the given ratio:

We use the distance formula to find the distance between coordinates:

3/4 = √[(x-4)²+(y-1)²] / √[(4-12)²+(1-5)²]
√[(x-4)²+(y-1)²]  = 3√5
(x-4)²+(y-1)² = 45
x² - 8x + 16 + y² - 2y + 1 = 45
x² - 8x + y² - 2y = 28  --> eqn 1

The second equation must come from the equation of a line:
y = mx +b
m = (5-1)/(12-4) = 1/2

Substitute y=5 and x=12 for point (12,5)
5 = (1/2)(12) + b
b = -1

So, the second equation is

y = 1/2x -1 or x = 2 + 2y --> eqn 2

Solving the equations simultaneously:
(2 + 2y)² - 8(2 + 2y) + y² - 2y = 28 
Solving for y, 
y = -2
x = 2+2(-2) = -2

Therefore, the coordinates of point A is (-2,-2).

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They sold 160 and for each 5 bags sold by one 3 bags are sold by another 3+5=8.

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3 years ago
If the area of a square is 1 square meter, how many centimeters long is each side?
Svetllana [295]

Answer:

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