Question

1. Write a proportion that can be used to find the cost of 10 note books if 3 notebooks cost$1.98

3/10 =n/$1.98
10/$1.99 =n/3
10/3 = $1.98/n
3/$1.98= 10/9

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Answer 1

The proportion is a fraction. You can set it up as:
\[\frac{price}{notebooks}\] or
\[\frac{notebooks}{price}\] doesn't matter.
And this fraction will be maintained.
So if you know that 3 notebooks cost 1.98 that's the correct proportion, you can see it as.
\[\frac{notebooks}{price}=\frac{3}{1.98}=\frac{10}{n}\]

Answer 2

thank you so much.

Answer 3

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