Every 100 tons of the earth's crust contain about 28 tons of silicon. What is the ratio of the weight of silicon to the weight o

Question

3 years ago

12

f crust? of the weight if crust to the weight of silicon?

1 answer:

d1i1m1o1n [39] · Answer 1 · 2022-02-18T16:55:03+03:00

<h3>Answer:</h3>

<h3>Explanation:</h3>

The wording "the ratio of A to B" means A/B.

Here, "the ratio of the weight of silicon to the weight of crust" means ...

... (28 tons)/(100 tons)

Canceling common factors (and common units), this is ...

... 28/100 = 7/25

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Then "the ratio of the weight of crust to the weight of silicon" means ...

... (100 tons)/(28 tons) = 100/28 = 25/7