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Viktor [21]
2 years ago
13

I need help with this question... the topic is solving linear systems of equations using elimination (addition). Please give exp

lanation so I can understand how to do it.

Mathematics
1 answer:
gregori [183]2 years ago
7 0

Answer:

x= -1

y=2

Step-by-step explanation:

6x+5y=4

6x-7y=-20

Subtract

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Which of the following equations is equivalent to 2/3x - 1/2y = 6?
Nostrana [21]

Answer:

4x - 3y = 36

Step-by-step explanation:

2/3x - 1/2y = 6

Multiply each side by 6 to get rid of the fractions

6*  (2/3x - 1/2y) = 6*6

Distribute the 6

12/3 x - 6/2y = 36

4x -3y = 36


4 0
3 years ago
Please help I will mark brainliest
den301095 [7]

Answer:

Choice 1) no

Choice 2) yes

Choice 3) yes

Choice 4) no

Choice 5) yes

Choice 6) no

6 0
2 years ago
Read 2 more answers
Elvis and $74 .50 a month.. how much does he earn to the nearest one penny.
sdas [7]

Answer:

Part A

12 months a year means

%74.5 x 12 = $894

Part B

4 weeks in a month means

$74.5 ÷ 4 = $18.625

But rounded to the nearest penny. . .

$18.62

because in the thousandths place was a 5 and you round up when there is a 5 or above

Part C

We will go with 31 days in a month, but I will also do 30 for you

$74.5 ÷ 30 = $2.48333

But rounded to the nearest penny. . .

$2.48

because you round down when there is anything less than a 4

$74.5 ÷ 31 = $2.40322580645

But rounded to the nearest penny. . .

$2.40

because you round down when there is anything less than a 4

3 0
3 years ago
Could someone help me out
AnnyKZ [126]
It is the second one
7 0
3 years ago
Read 2 more answers
I need help, I got 80 and 90 but it said I was wrong...​
Anton [14]

Answer:

I think it is 90 and 100

Step-by-step explanation:

I used this equation: x is the speed of the slower train

910 = (5x + 10) + 5x

8 0
3 years ago
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