Kira needs 3,000 milligrams of zinc for a science experiment. Which expression can be used to determine how many grams of zinc she needs? A. 1000 ÷ 3000 B. 1000 × 3000 C. 3000 ÷ 1000 D. 3000 × 100

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asked Mar 1, 2019 107k views

4 votes

Kira needs 3,000 milligrams of zinc for a science experiment. Which expression can be used to determine how many grams of zinc she needs?

A. 1000 ÷ 3000
B. 1000 × 3000
C. 3000 ÷ 1000
D. 3000 × 100

Mathematics
middle-school

Maxy asked

by Maxy

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C is the correct answer.

Yosef answered Mar 3, 2019

by Yosef

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1 vote

We know
$1000\;mg=1\;g$ . Therefore, 3000 mg of Zinc is equivalent to

$(3000\;mg)/(1000) =3000/1000=3\;g$ .

Thus the correct answer is (C).

Bill Chen answered Mar 4, 2019

by Bill Chen

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