Four oranges cost 90 cents, an orange costs 90/4 cents, which is around 22.5 cents. Multiply this by 36 to get the cost of 3 dozen oranges, so 22.5 times 36 is 810, 810 cents, or 8.10 dollars.
Answer:
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Step-by-step explanation:
I got this off the internet for you.
In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.
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Answer: the answer is 7
Step-by-step explanation: the lowest number is 3 and the biggest one is 10 so you substract 10-3 and you get 7
Divide the silver present in the bar by the total weight of the bar to find the percentage of silver in the bar.

Multiply this decimal by 100 for the percentage.

Rounded to the nearest tenth
, 71.4% of the weight of the bar is silver.