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Andre45 [30]
3 years ago
6

What fractional part of a week is 63 hours

Mathematics
1 answer:
Rus_ich [418]3 years ago
7 0

Answer:

Week = 21/56

Step-by-step explanation:

1 week=24×7

1 week =168 hours

? Week =63 hours

By cross multiplying both equations

? Week=63/168

Week=21/56

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kenny6666 [7]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
1. (4x-3)(3x^2+8x-5)
lesya [120]
Here, you have to foil the equation. 

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12x^3+23x^2-44x+15
6 0
3 years ago
Solve the equation -4x + 7 y equals 20. Y=3x+15
satela [25.4K]

Substitue what y equals for y and solve.

-4x+7(3x+15)=20 \\-4x+27x+105=20 \\23x=-85 \\x=-\boxed{\frac{85}{23}}

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3 0
2 years ago
How to do this I don’t understand
Andrej [43]

Answer:

holy this is just substitution child

Step-by-step explanation:

1. y + 2, y = 4

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4 + 2 = 6

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4. x - 7, x = 12

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5. 2c - 4, c = 5

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7. 2z - 3x

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8. 6x / (y + z)

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30 / 10 = 3

5 0
3 years ago
Someone please help me
wel
V=(hπr^2)/3, π≈3.14, h=7, r=2

V≈29.3 cm^2
3 0
3 years ago
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