A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the person's weight, in pounds, when expressed to the correct number

of significant figures?

A.

190 lb

B.

180 lb

C.

52 lb

D. 39 lb

Question

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Chemistry

21 April, 20:04

A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the person's weight, in pounds, when expressed to the correct number

of significant figures?

A.

190 lb

B.

180 lb

C.

52 lb

D. 39 lb

+4

Answers (2)

Know the Answer?

Arely Andrews · Answer 1

It would be 190 because 87•.45 is 193, and the dig figs makes it 190

Kiley Perkins · Answer 2

Answer: A. 190 lbs.

Explanation: To find the mass in pounds we will use the following conversion factor: 1 lb = 0.45 kg

Solution:

87 kg x 1 lb / 0.45kg = 193 lbs.

Among the choices 190 lbs is the closest so it is the answer.

A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the person's weight, in pounds, when expressed to the correct numberof significant figures?A.190 lbB.180 lbC.52 lbD. 39 lb

A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the person's weight, in pounds, when expressed to the correct number

of significant figures?

A.

190 lb

B.

180 lb

C.

52 lb

D. 39 lb