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saul85 [17]
3 years ago
14

Use the elimination method to solve the system of equations. Choose the

Mathematics
1 answer:
kherson [118]3 years ago
8 0

Answer:

x=1,y=-2. (1, -2).

Step-by-step explanation:

5x-2y=9

3x+4y=-5

----------------

2(5x-2y)=2(9)

3x+4y=-5

-------------------

10x-4y=18

3x+4y=-5

--------------

13x=13

x=13/13

x=1

5(1)-2y=9

5-2y=9

2y=5-9

2y=-4

y=-4/2

y=-2

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Please help I don’t understand
Olegator [25]

Answer:

They are not similar.

Step-by-step explanation:

To find whether or not they are similar, set them up as a proportion.

(2.4/5.2) = (8/13)

Now cross multiply.

2.4*13 = 5.2*8

31.2 = 41.6

Since they are not exact, they are not similar.

8 0
3 years ago
Perform the operation and, if possible, simplify<br> 21/20 - 4/15
Kazeer [188]

Answer:

47/60

Step-by-step explanation:

Find the LCM and multiply to get there.

LCM is 60

63/60-16/60

47/60

8 0
3 years ago
Someone plz help what would this be
Temka [501]

Answer:

5

Step-by-step explanation:

(125) ^ (1/3)

What number times itself times itself =125

a*a*a =125

5*5*5 = 125

6 0
3 years ago
What is the volume of a cube with a side length of 5 cm? help asap
uranmaximum [27]
V = a * b * c 
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in here a=b=c=5cm 
V=5*5*5 = 125 cm^3

or 
V=a^3 = 5^3 =125 cm^3
6 0
3 years ago
Need help on question 22
zhannawk [14.2K]
You multiply 5 times 10, which gives you 50. This is the length of one side. Since it's a square, all sides are the same length.

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3 years ago
Read 2 more answers
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