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3 years ago

7

A traintravels 200 kilometers in 2.5 hours. whatis the trains average speed per hour

1 answer:

marusya05 [52]3 years ago

5 0

I think it may be 80 km/h?

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What are the steps to solve √(0.2)^(−2)?<br><br>(The answer is 5)

Nimfa-mama [501]

$\bf 0.\underline{2}\implies \cfrac{02}{1\underline{0}}\implies \stackrel{simplified}{\cfrac{1}{5}} \\\\[-0.35em] ~\dotfill\\\\ \left( \sqrt{0.2} \right)^{-2}\implies \left( \sqrt{\cfrac{1}{5}}\right)^{-2}\implies \left( \sqrt{\cfrac{5}{1}}\right)^{+2}\implies \cfrac{(\sqrt{5})^2}{(\sqrt{1})^2}\implies \cfrac{\sqrt{5^2}}{\sqrt{1^2}}\implies 5$

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3 years ago

7 3/4 + (12 - 3 6/11) =

nataly862011 [7]

Answer:

$\frac{713}{44} = 16 \frac{9}{44}$

Step-by-step explanation:

7 3/4+ (12 - 3 6/11)

31/4 + (12 - 3 6/11)

31/4 + (12 - 39/11)

31/4 + 93/11

= <u>7</u><u>1</u><u>3</u><u>/</u><u>4</u><u>4</u><u> </u><u>=</u><u> </u><u>1</u><u>6</u><u> </u><u>9</u><u>/</u><u>4</u><u>4</u>

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2 years ago

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Order the numbers from least to greatest. 3 and thirty nine fortieths, 3 and nineteen twentieths, 3 and one half.

Assoli18 [71]

3 39/40 = 3.975
3 19/20 = 3.95
3 1/2 = 3.5

least to greatest : 3 1/2, 3 19/20, 3 39/40

8 0

3 years ago

Find the value of x. I will mark brainliest

Mandarinka [93]

Answer:

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Step-by-step explanation:

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3 years ago

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Hoochie [10]

A'(1,-2)
B'(1,-3)
C'(-1,-3)
D'(-1,-2)

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3 years ago