Question

if p varies directly as q and p=18, q=36

Answer 1

"p varies directly as " MEANS p = k*q

Just hear that in your head when you read it.

Substitute the given values to find 'k'.

Answer 2

thank you. this is my summer work for high school and I haven't been taught this yet.

Answer 3

You'll need this one, too.

"p varies inversely as q" MEANS p = k/q

Answer 4

thank you. I need help on this equation because I have a hard time with percentages. If a population of rats was 10 in January and 15 in February, what is the percent growth of these rats?

Answer 5

\(\dfrac{New-Old}{Old}\implies\dfrac{15-10}{10}\) Make that a percentage and you're done.