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(Multiplying and Dividing with Scientific Notation MC)

How many times smaller is 5 x 10-7 than 8.5 x 10-4? I NEED THIS ASAP

User DharmanBot
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2 Answers

4 votes

Answer:

38

Explanation:

5 x 10 -7= 43

8.5 x 10 -4= 81

81-43= 38

User Cliffordheath
by
8.5k points
5 votes

Answer:


1.7 * 10^3 = 1700

Explanation:

To find how many times x is smaller than y, divide y by x.

Here we want to find how many times 5 × 10^-7 is smaller than 8.5 × 10^-4, so we divide 8.5 × 10^-4 by 5 × 10^-7.


(8.5 * 10^(-4))/(5 * 10^(-7)) =


= (8.5)/(5) * (10^(-4))/(10^(-7))


= 1.7 * 10^(-4 - (-7))


= 1.7 * 10^(-4 + 7)


= 1.7 * 10^3 = 1700

User DitherSky
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