Question

A study found that 7 out of 10 participates could curl their tongue. If there are 200 total, how many of them are expected to be able to curl their tongue?

Answer 1

140 people i believe.

Answer 2

140 people

Explanation:

We can make two ratios...

7:10

x:200

We can since 10*20 = 200, we can multiply 7 by 20 to get x.

x=7*20=140

140 people are expected to be able to curl their tongue