B. When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a prefix with the unit.
A pain-relieving pill has a mass of 0.005g. Express the pill’s mass in grams using scientific notation or in milligrams.
7 Answers
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A. 48 m because all sides are equal and you multiply 12 by 4.
B. 1 g = 1000 mg
___ _______
0.005 mg = x mg
Cross multiply.
x mg = 5 g
The answer is 5mg
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Because a square has four sides of equal length, the perimeter is
12 m+12 m+12 m+12 m=48.0 m
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Squares have four sides of equal length, therefore:
Perimeter = 4 x 12 m = 48 m
0.001 g = 1 mg => 1 g = 1000 mg
Convert grams into milligrams by multiplying the value (in grams) by 1000, therefore:
0.005 g x 1000 = 5 mg
I hope I’ve helped you learn how to do any similar questions by yourself, not not just given you the answers 🙂
Source(s): A-level maths -
A.
P = 48 m
B.
0.005 g = 5 mg
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Use either an integer, decimal number, or scientific notation for the numeric portion of your answer. Do not use calculations or functions.
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48m
5mg
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48.0m
5g^-3
