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Juli2301 [7.4K]
3 years ago
10

Henry can mow an acre in 2 hours. Mitzi can mow an acre in 4 hours. How long would it take them to mow 30 acres?

Mathematics
1 answer:
shusha [124]3 years ago
8 0

Answer:

40

Step-by-step explanation:

Henry will take 2/3 or 20 acres and Mitzi will take 1/3 or 10 acres. Leading to it taking 40 hours.

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Please solve all with explanation
garri49 [273]

Answer:

1. \frac{x^2}{y^8}

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Step-by-step explanation:

1.

(\frac{x^{-3}y^4}{x^{-2}})^{-2}\\({x^{-3+2}y^4})^{-2}\\({x^{-1}y^4})^{-2}({x^{-1*-2}y^{4*-2})= \frac{x^2}{y^8}

2. a)

2 [(\frac{-1}{4}) -12 (-1)^2] - 5[24 +2 (-12)]^2\\2[(\frac{-1}{4}) -12] - 5[24 -24]^2\\2 * [(\frac{-1}{4}) -12]  -0\\\frac{-49}{2}

b)

-a^2b^2 - 3a^3b^2\\-\frac{1}{9}*1 - 3 * \frac{-1}{27} *1\\-\frac{1}{9} + \frac{1}{9}\\0

3.

\frac{3}{4}x + \frac{5}{6} = 5x -\frac{125}{3} \\\frac{5}{6} + \frac{125}{3} = 5x - \frac{3}{4}x\\\frac{5+250}{6} = \frac{20x -3x}{4}\\\frac{255}{6} = \frac{17x}{4}\\x = 10

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