3 years ago

Write 4,050 in expanded form

Mathematics

1 answer:

REY [17]3 years ago

8 0

Answer:

Step-by-step explanation: 4,000 + 50

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X+y=7;x+2y=11<br>Solve by substitution <br>steps must.

Tpy6a [65]

Answer:

Step-by-step explanation:

x + y = 7 ------------(I)

y = 7 - x ------------(II)

x + 2y = 11 --------------(III)

Substitute y = 7 - x in equation (III)

x + 2 * (7 -x) = 11

x + 2*7 - 2*x = 11

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x - 2x + 14 = 11

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Multiply both sides by (-1)

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liq [111]

Answer: 12.32%

Step-by-step explanation:

1. $x$ is the original long side and $y$ is the original short side.

2. The area of the original rectangle is $xy$ .

3. The rectangle is extended 4% on the long sides and 8% on the short sides. therefore, the new long side is:

$\frac{104}{100}x=\frac{26}{25}x$

4. And the new short side is:

$\frac{108}{100}y=\frac{27}{25}y$

5. The new area is:

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6. The percentage of increase is calculated by substracting the new area and the original area:

$\frac{702}{625}xy-xy=0.1232xy$

7. The result is:

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Step-by-step explanation:

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