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slavikrds [6]
3 years ago
8

3/9 and 5/15 are they equivalent

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
8 0

Answer:

yes

Step-by-step explanation:

3/9  Divide the top and bottom by 3

1/3

5/15 Divide the top and bottom by 5

1/3

They are equal

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Solve, using linear combination.
Bingel [31]

Multiply the first equation by -1 to get  -4x - y = --5

Then add the second equation               3x + y = 3    

                                                           + ____________  

                                                                  -x = -2  or x = 2


then plug in 2 for x in one of the equations and solve for y      4(2) + y = 5  

                                                                                                          8 + y = 5

                           Subtract 8 from both sides                                        y = -3


                             So x = 2, y = -3     or (2,-3)                                  

8 0
3 years ago
In AIJK, i = 270 cm, j = 170 cm and _K=122°. Find the area of AIJK, to the
Softa [21]

9514 1404 393

Answer:

  19,463 cm²

Step-by-step explanation:

The area is given by the formula ...

  A = (1/2)ij·sin(K)

Filling in the values, we find the area to be ...

  A = (1/2)(270 cm)(170 cm)·sin(122°) ≈ 19,463 cm²

7 0
3 years ago
HELPPP QUICKKK PLSSSS PEOPLE I NEED HELP NOW PLSSSSS Which of the following equations describes the line shown below? Check all
Sav [38]

Let there exists a point (x, y) on the given line.

Slope of all points must be same, as they lie on the same line.

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=> (y - 1)/(x - 2) = - 1/2

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Option 1 is the correct option

7 0
2 years ago
Brainliest if correct. YOUR ASSIGNMENT: Valuable Coins
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Step-by-step explanation:

7 0
2 years ago
The scatter plot below shows the relationship between the diameter (x), in mm, and mass f(x), in grams, of a berry: ordered pair
ivann1987 [24]
For this case the first thing we must observe is that the mass increases 0.4 grams when the diameter increases 1 millimeter.
 Therefore, the slope of the line is given by:
 m = 0.4
 Thus, the function that best suits the table is given by:
 f (x) = -4 + 0.4x
 For example, for x = 20 we have:
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 Answer:
 The function that is best represented by the scatter plot is: 
 f (x) = -4 + 0.4x
6 0
3 years ago
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