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madreJ [45]
2 years ago
13

will mark BRAINLIEST for correct answer. Find the sum. In your final answer, include your calculations. -3.45 + 5.1

Mathematics
2 answers:
Alexeev081 [22]2 years ago
4 0

Answer:

-3.45+5.1=1.65

Step-by-step explanation:

You could use a calculator (just sayin)

Ganezh [65]2 years ago
3 0

Answer:

1.65

Step-by-step explanation:

since you have a negative value, instead of adding you must substract the biggest number from the smallest number, getting: 5.1-3.45.

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1) 2x – y = 1
aleksandrvk [35]

Answer:

1) (2, 3)

2) (2, -5).

Step-by-step explanation:

2x – y = 1

2x +2y = 10   Subtract to eliminate  the 2x:

2x - 2x - y - 2y = 1  - 10

-3y = -9

y = 3.

Plug this into the first equation:

2x - 3 = 1

2x = 4

x = 2.

2)

5x – y =15

x + y = -3     Adding to eliminate y:

5x + x - y + y = 15 + -3

6x = 12

x = 2

Plug this into the first equation:

5(2) - y = 15

-y = 15 - 10 = 5

y = -5.

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3 years ago
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5 0
1 year ago
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A true


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4 0
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