Shopper bought a 12-pound bag of oranges for $18.72. How much did it cost per pound? PLZ HELP
1 answer:
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Answer:
$
Step-by-step explanation:
<em>To find out what she paid with the discount and no tax, turn the percentage into a decimal. To do that, divide it by 100.</em>
Then, multiply that by the total.
<em>Subtract that by the total.</em>
<em>Now, we need to find the sales tax. Again, we know to divide the percentage by 100 to get the decimal. In that case, 6.5% is now .065.</em>
Multiply that by the discounted price.
<em>Add that to the price.</em>
$ would be the total price.
<em>:)</em>
Answer:
The 80% confidence interval for the mean
(4.6199 , 4.7801)
Step-by-step explanation:
<u>Explanation</u>:-
Assuming that the population standard deviation for the number of energy drinks consumed each week is 1
Given the Population standard deviation 'σ' = 1
The study found that for a sample of 256 teenagers the mean number of energy drinks consumed per week is 4.7
given sample size 'n' = 256
mean of the sample 'x⁻' = 4.7
<u>confidence interval for the mean</u>
The 80% confidence interval for the mean is determined by
the z-score of 80% level of significance = 1.282
(4.7 - 0.0801 , 4.7 +0.0801)
(4.6199 , 4.7801)
<u>Conclusion</u>:-
The 80% confidence interval for the mean
(4.6199 , 4.7801)