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timofeeve [1]
3 years ago
9

25. Save the simultaneous equations 2x-y=4;x+y=5​

Mathematics
1 answer:
Helen [10]3 years ago
3 0

Answer:

x = 3

Step-by-step explanation:

2x - y = 4

x + y = 5

y = 5 - x

2x - (5 - x) = 4

2x + x - 5 = 4

3x = 9

x = 3

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Suppose the length of the base b of a rectangle is increased by 20 percent and the length of the altitude h is increased by 40 p
jek_recluse [69]

9514 1404 393

Answer:

  (a) 1.2b

  (b) 1.4h

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(a) If 20% of b is added to b, you have ...

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(b) Similarly, if 40% of h is added to h, you have ...

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(c) The area of the new rectangle is the product of the new dimensions:

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(d) The original rectangle area is A = bh, so the percentage change can be computed as ...

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5 0
3 years ago
Can someone please help me (6y-22) = (y-11)
Pepsi [2]

Answer:

<h3>2.2</h3>

Step-by-step explanation:

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5 0
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