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.

it would more likely be bald eagle because its has more in the box so about 75%.

step-by-step explanation:

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.