Round each amount to the nearest hundred to find an estimate of 9635-4891

Mathematics

2 answers:

Snezhnost [94]3 years ago

4 0

Answer:

4700

Step-by-step explanation:

Rounding to 100: Look at the tenth value. If this value is greater than or equal to 5, round up. If this value is less than 5, round down.

9635 = 9600

4891 = 4900

9600 - 4900 = 4700

You can check if it's accurate by comparing it to the original.

9635 - 4700 = 4744

notsponge [240]3 years ago

3 0

Answer:

The answer is D 4700

Step-by-step explanation:

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Solve the following by elimination method 11x+15y+23=0 and 7x-2y-20=0

mr Goodwill [35]

Let 11x + 15y + 23 = 0 be equation (1)
And 7x - 2y - 20 = 0 be equation (2)

Multiply equation (1) by 2:
22x + 30y + 46 = 0

Multiply equation (2) by 15:
105x - 30y - 300 = 0

Add equations (1) and (2):
22x + 105x + 30y - 30y + 46 - 300 = 0
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127x = 254
x = 254/127
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Substitute x = 2 in equation (1) to find y:
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