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3 years ago

Round of 389,422 in 1,000

1 answer:

4 0

So,

To round the nearest thousand, look at the number in the hundredths place.
If n ≥ 5, round up
If n < 5, round down

4 < 5, therefore round down.

389,422 --> 389,000

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2 years ago

Identify the domain and range of this graph

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3 years ago

4x + 5y = 3 2x + 3y = 1Solve by elimination

Lesechka [4]

Answer:

The solution to the system of equations is:

x = 2, and y = -1

Explanation:

Given the pair of equations:

4x + 5y = 3 ..........................................................................(1)

2x + 3y = 1............................................................................(2)

To solve this by elimination:

Multiply equation (2) by 2, to eliminate x

Equation (2) becomes

4x + 6y = 2 .........................................................................(3)

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12x + 15y = 9 .......................................................................(5)

Equation (2) becomes

10x + 15y = 5 ........................................................................(6)

Subtract equation (6) from (5)

12x - 10x + 15y - 15y = 9 - 5

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Divide both sides by 2

x = 4/2 = 2 ............................................................................(7)

From equations (7) and (4)

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1 year ago