What is the value of x when y 15?

45
Summary: The value of x in the equation x – y = 30, when y = 15 is 45.

How do you solve x varies inversely as Y?

An inverse variation can be represented by the equation xy=k or y=kx . That is, y varies inversely as x if there is some nonzero constant k such that, xy=k or y=kx where x≠0,y≠0 .

What is the equation for inverse proportion?

y = k/x
The formula of inverse proportion is y = k/x, where x and y are two quantities in inverse proportion and k is the constant of proportionality.

What is the answer 6w 90?

1 Expert Answer 2w+2w+w+w = 6w. This simplifies it to 6w = 90. Once you divide both sides by 6, you get w = 15.

What does it mean when y varies inversely as x?

Inverse Variation
The statement “y varies inversely as x means that when x increases, ydecreases by the same factor. In other words, the expression xy is constant: xy = k.

What is inversely proportionality?

Two quantities are said to be inversely proportional when one quantity is in direct proportion to the reciprocal of others. Two variables are called inversely proportional, if and only if the variables are directly proportional to the reciprocal of each other.

What is the constant of proportionality of 20?

Work more hours, get more pay; in direct proportion. etc The “constant of proportionality” is the value that relates the two amounts The constant of proportionality is 20 because: Example: y is directly proportional to x, and when x=3 then y=15.

What is the difference between direct proportion and inverse proportion?

If one variable decreases, the other decreases in the same proportion. Inversely proportional variables are those in which one variable decreases with the increase in another variable and one variable increases with the decrease in another variable. It is opposite to direct proportion.

Is it possible to be proportional to a function?

It is also possible to be proportional to a square, a cube, an exponential, or other function! A stone is dropped from the top of a high tower. The distance it falls is proportional to the square of the time of fall. The stone falls 19.6 m after 2 seconds, how far does it fall after 3 seconds?