If y varies directly as x and y is 18 when x is 5 which expression can be used to find the value of y when x is 11?

The value of y is or 39.6.

Step-by-step explanation:

It is given that y varies directly as x and y. It means y is directly proportional to x.

           .... (1)

where, k is constant of proportionality.

It is given that y is 18 when x is 5.

Substitute y=18 and x=5 in equation (1).

Divide both sides by 5.

The value of k is . So, the relation between x and y is

           .... (2)

We need to find the value of y when x=11.

Therefore the value of y is or 39.6.

the correct answer is b) histograms can be used to exhibit the shape of distributions. this is because histograms count the frequency of each possible answer, so one is able to see which results are more common and which are less common.

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