# TSI Math: Working with Inversely-Related Variables

a varies inversely as the value of b. a = 90 when b = 3. What is the constant of proportionality relating a and b?

Elementary Algebra and Functions | Algebraic Expressions and Equations |

Mathematics and Statistics Assessment | Algebraic Expressions and Equations |

Product Type | TSI |

TSI | Mathematics and Statistics Assessment TSI Math TSI Mathematics |

TSI Math | Elementary Algebra and Functions |

TSI Mathematics | Elementary Algebra and Functions |

Test Prep | TSI |

### Transcript

europe parties to make your friends think you're really cool

when two variables very inversely their product is constant that

is a times b equals k the constant of proportionality

K is the product of a and b like you

multiply them together and you can count on what number

you're going to get to find Kay Well we just

multiply and be together ninety times Three is to seventy

which is kay Well the constant of proportionality is to

seventy that's it also it's true we just like saying

constant of proportionality Politicians should say that well thirty a

would be the correct answer is a very directly as

be but in that case and b would be related

by the equation A equals a times b instead of

a b equals cake so that's it it's sea to

seventy and we're going to say it one more time

Constant of proportionality C