Tom and becky can paint jim's fence together in $12$ hours. if all people paint at the same rate, how many hours would it take to paint the fence if huck joins tom and becky, and all three of them paint jim's fence together?

8 hours

Step-by-step explanation

The first thing one mus realize here is that this is an inverse proportion question. When one quantity increases, the other decreases. That is the time needed to paint the fence decreases as the number of people who work on it increase. This means therefore that we can set up a proportionality equation:

where t is time and n is the number of people. Given the information in the question we can find the proportionality constant k

so k=24

So how many hours does it take for 3 people

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

i can't solve unless i know what the line is

step-by-step explanation:

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