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DIA [1.3K]
3 years ago
6

5x-4y=19 x-2y=8 Can someone please help me :))) Tenkss x

Mathematics
2 answers:
agasfer [191]3 years ago
8 0

Answer:

x=1/3

Step-by-step explanation:

5x-4y=19

2(2x-4y)=(9)2

-

____________

3x=1

x=1/3

I feel like i did this wrong

stira [4]3 years ago
6 0

Multiply the second row by 5

5x - 4y = 19

5x - 10y = 40

Subtract the 2nd row from the 1st row

6y = -21

Solve for y in the above equation

y = -7/2

Substitute y = -7/2 into any of the above equations. Let's pick the first one; 5x - 4y = 19

5x - 4 × -7/2 = 19

Solve for x in the equation above

x = 1

Therefore,

<u>x = 1</u>

<u>y = -7/2</u>

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3 years ago
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viktelen [127]

Answer:

See explanation.

Step-by-step explanation:

  1. A terminating decimal is a decimal that has an end.
  2. A repeating decimal is a decimal fraction in which a number, or a group of numbers, is repeated indefinitely.
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5 0
2 years ago
2x-1 less than -1 or -4x less than -12
Bond [772]

The solution to these equations is either x < 0 or x > 3.

In order to find them, we need to solve each equation separately. Let's start with the first one.

2x - 1 < -1 -----> Add 1 to both sides

2x < 0 -----> Now divide each side by 2.

x < 0

Now let's look at the second one.

-4x < -12 ----> Divide both sides by -4

x > 3 (Notice that the sign changes direction because we divided by a negative)

When you have an "or" statement, you'll wind up with two answers, so we use both of these.

6 0
3 years ago
How many possibilities are there for a license plate with 3 letters and 3 numbers?
DochEvi [55]
The total number of arrangements of three letters followed by three digits is then the product of the number of options available at each step and is then 26⋅26⋅26⋅10⋅10⋅10=263⋅103 hope this helps!! also don’t open the link the other person posted, it’s a virus
8 0
3 years ago
Hi could someone work this out for me? thanks in advance​
swat32
The answer is 66.

Explanation
4×3 = 12,
6×9 = 54.
54+12 = 66

To do this the first box on the left corner it says three and four so you multiply them. Then there’s a second box with six and nine. You have to multiply 6 and 9 together. After you get those answers you add that answer with the answer from three times four.
Hope I helped you!
:)
7 0
3 years ago
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