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joja [24]
3 years ago
7

Please help me on this equation 9x-71>3(3x-7u)

Mathematics
2 answers:
kakasveta [241]3 years ago
7 0
<span>9x-71>3(3x-7u)
</span>⇒ 9x -71 > 3*3x -3*7u (distributive property)
⇒ 9x -71 > 9x -21u
⇒ (9x -9x) -71 > (9x -9x) -21u
⇒ -71 > -21u
⇒ -21u < -71
⇒ u > -71/(-21)
⇒ u > 3 8/21
<span>
Final answer: </span>u > 3 8/21~
777dan777 [17]3 years ago
3 0
9x - 71 > 3(3x - 7u)
Expand the brackets
9x - 71 > 9x -21u
Subtract 9x from both sides
-71 > -21u
multiply by -1 to make positive
71 > 21u
Divide both sides by 21 to get what u equals
71/21 = 3.3....
U must be more than 71/21 or 3.3

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The complete question is
<span>Bradley made a house for his dog, Bowser, out of wood with a cube base and a triangular prism top. The dimensions of the dog house are a = 2 feet, b = 1 foot, and c = 1.4 feet.
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we know that

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the answer is
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7 0
3 years ago
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liubo4ka [24]

Answer:

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