1 Answer

Gozde · Answer 1 · 2021-05-22T01:06:29+0000

800 dentists recommended Flash toothpaste

Solution:

Given that, magazine as states that 4 out of 7 dentists prefer flash toothpaste

1400 dentists were surveyed

To find: Number of dentists recommended falsh toothpaste

Let "x" be the number of dentists recommended falsh toothpaste

Then, we can say,

4 out of 7 equals x out of 1400

$\rightarrow (4)/(7) = x * 1400\\\\\rightarrow x = (4)/(7) * 1400\\\\\rightarrow x = 800$

Thus 800 dentists recommended Flash toothpaste

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