Find an equation of variation where y varies directly as x and y = 15 when x = 5, find y when x is 19.

y=57, when x is 19.

Step-by-step explanation:

We are asked to write an equation of variation where y varies directly as x.

Since we know that a directly proportional equation is in form: , where k is the constant of proportionality.

Upon substituting x=5 and y= 15 in our equation of variation we will get,

Upon substituting k=3 in the standard equation of variation we will get our desired equation of variation as: .

Now let us find y, when x is 19.

Therefore, y equals 57, when x is 19.

the answer is b.)

< 1=< 2

step-by-step explanation:

ok one would be money, and the other would be refreshments or something similar. if each bag of popcorn is 5.00 and each drink is half of that that means drinks are 2.50 the proper way to do that would to look and see how much of each you can buy without exceeding a limit of 30.00