Evelyn needs 123 in. of white ribbon for the 82 in. of blue ribbon, so the white color of ribbon she will run out of the first.
It is a basic operation of arithmetic in which you divide a number into smaller parts.
Given:
Evelyn uses 6 in. of blue ribbon for every 9 in. of white ribbon,
So for 1 in. of blue ribbon, she needs 9 / 6 in. of white ribbon,
And for the 82 in of blue ribbon, she needs 9 / 6 × 82 in. of white ribbon
Hence, she needs 123 in. of white ribbon for the 82 in. of blue ribbon,
Therefore, The white color of ribbon she will run out of the first.
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