alexabdercmur
17.07.2019 •
Mathematics
David bought a silver ring at a jewelry store. he finds that the density of the ring is 10.5 grams per cubic centimeter and its volume is 2 cubic centimeters. what is the mass of the ring? a.21 g b.42 g c.57 g d.78 g
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Ответ:
Ответ:
Option B
Step-by-step explanation:
Let X be the export and I be the import.
It is given that Lebanon has a balance of trade of (equivalent US dollars) $5,510,000.
Balance of trade = Export - Import
(1)
The import tariff is 13%, and the export tariff is 8%. Lebanon received tariff revenue of $4,019,200.
(2)
Substitute the value of X from equation (1).
Divide both sides by 0.21.
Substitute the value of I in equation (1).
$17,040,000 in imports, $22,550,000 in exports
Therefore the correct option is B.