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Alexeev081 [22]
3 years ago
9

Two times the sum of half a number and six is four. Find the number.

Mathematics
1 answer:
Natasha2012 [34]3 years ago
7 0

Answer:

The number is -8.

Step-by-step explanation:

2(\frac{1}{2}x + 6)=4\\ \frac{1}{2} x+6=2\\\frac{1}{2} x=-4\\x=-8

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You only need 1 point to define a ray
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The blue dot is at what value on the number line?<br> +<br> +<br> -7<br> -3
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Need some help with this please!!
beks73 [17]

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B,C and B,A

Step-by-step explanation:

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4 0
3 years ago
Determine whether the bolded numerical value is a parameter or a statistic. Explain your reasoning.The average annual salary of
sergey [27]

Answer:  F. Statistic​, because the data set of salaries of 50 employees is a sample.

Step-by-step explanation:

A parameter gives measure of a characteristic for the entire population where as a statistic gives measure of a characteristic for the subset of population (sample).

Given : The average annual salary of 50 of a company's 800 employees is $54,000.

It means the sample size = 50 and the sample mean salary= $54,000.

i.e $54,000 is giving the measure for mean salary for the sampled 50 employees.

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Hence, the correct answer is option (F).

7 0
3 years ago
Sue Mitchell weighed 8 lb. 13 oz. when she was born. She now weighs 93 lb. 5
ra1l [238]

Answer:

Weight gain = 84 lb 5 oz

Average weight gain = 6 lb 5 oz

Step-by-step explanation:

lb means pounds

16 oz = 1 pound

Convert the weight to pounds

Weight when she was born = 8 lb. 13 oz

= 8 pounds + 0.8125 pounds

= 8.8125 pounds

Present weight = 93 lb. 5

oz

= 93 pounds + 0.3125 pounds

= 93.3125 pounds

How much has she gained since birth

Weight gain = Present weight - Weight when she was born

= 93.3125 pounds - 8.8125 pounds

= 84.5 pounds

= 84 lb 5 oz

Weight gain = 84 lb 5 oz

what has been her average weight for each year if she is 13 year old

Average weight gain = Weight gain / 13

= 84.5 pounds / 13

= 6.5 pounds

= 6 lb 5 oz

Average weight gain = 6 lb 5 oz

8 0
2 years ago
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