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dnjames01
01.07.2019 •
Mathematics
What sales tax, at a rate of 5%, must you pay on the purchase of a computer hard drive that costs $229?
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Ответ:
So, .05 x 229 = 11.45
$11.45 tax
Ответ:
Romania has the greatest population density (95.24) and U.S. has the least (29.12). It means that there are more inhabitants per square kilometer in Romania than in Ghana and US. and that there are less inhabitants per square kilometer in U.S. than in Ghana and Romania.
Step-by-step explanation:
Country Population (1997 estimate) Area (square km)
U.S. 272,648,000 9,364,520
Romania 22,609,000 237,391
Ghana 18,339,000 237,533
Which of these countries has the greatest population density? Which has the least? Provide an explanation and proof for your answer to receive full credit.
Let's recall the formula of the population density:
Population density = Country population/Area
U.S. 272,648,000/ 9,364,520 = 29.12 (rounding to the next hundredth)
Romania 22,609,000/ 237,391 = 95.24 (rounding to the next hundredth)
Ghana 18,339,000/ 237,533 = 77.21 (rounding to the next hundredth)
Romania has the greatest population density (95.24) and U.S. has the least (29.12). It means that there are more inhabitants per square kilometer in Romania than in Ghana and US. and that there are less inhabitants per square kilometer in U.S. than in Ghana and Romania.