3 years ago

Some people were asked how long it takes them to commute to work. USe the data for 9-11

1 answer:

5 0

Answer: mean

Step-by-step explanation: The mean is a more accurate answer because it’s finding the average of the answers where the median is just the center number of wide ranges numbers

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The sum of the first 3 terms of a geometric series is 171 and the common ratio is 2/3. What is the first term?

goblinko [34]

Answer:

Step-by-step explanation:

let the terms be a,ar,ar²

r=2/3

a+a(2/3)+a(2/3)²=171

multiply by 9

9a+6a+4a=171×9

19 a=171×9

a=(171×9)/(19)

a=9×9=81

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3 years ago

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Which expressions are equivalent to 10a - 25 + 5b10a−25+5b10, a, minus, 25, plus, 5, b?

Rainbow [258]

Answer:

Answer: (2a - 5 + b)5

Answer: 10 x (a - 2.5 + 0.5b)

Answer: (-2a + 5 - b) ⋅ (-5)

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3 years ago

Pls help, I don't understand

Ne4ueva [31]

1 Yes 2. Yes

Step-by-step explanation:

they are similar because in problem one each side is related by a factor of 3

in problem 2 each side is related by a factor of 2.

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3 years ago

What is the value of x in the equation

Nastasia [14]

Answer:

Step-by-step explanation:

$\frac{1}{3x} - \frac{1}{2} = 18 \frac{1}{2} \\ \\ \frac{1}{3x} - \frac{1}{2} = \frac{37}{2} \\ \\ \frac{1}{3x} = \frac{37}{2} - \frac{1}{2} \\ \\ \frac{1}{3x} = \frac{37 - 1}{2} \\ \\ \frac{1}{3x} = \frac{36}{2} \\ \\ \frac{1}{3x} = 18 \\ \\ 1 = 54x$

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3 years ago

after filling her gas tank, katie drove 159.75 miles. after the ride. she filled her tank again with 7.1 gallons of gas. on aver

Softa [21]

22.5 you divide 159.5 by 7.1

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3 years ago