Problem

Cost of a Pizza A pizza parlor charges $\$ 12$ fo…

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Problem 18 Easy Difficulty

Making Models : Write an algebraic formula that models the given quantity.

18. The speed $r$ of a boat that travels $d$ miles in 3 $\mathrm{h}$

Answer

$r=\frac{d}{3}$

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Algebra

Algebra and Trigonometry

Chapter 0

Prerequisites

Section 1

Modeling the Real World with Algebra

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Video Transcript

in this problem, we are asked to model the speed of a boat that travels a total of G miles in three hours. So loyal, we find the speed of anything is we're going to say the speed which in this instance is our is equal to the distance traveled. So in our example, we're using Dia's are variable divided by the total time it takes. And so the problem tells us that the total time is going to be three hours. So our speed are equals distance king over three, and then we can check to make sure that this is right by taking the units on each side of the he said of the equation. So we'll just start with the right side. So Dean, over three, the units of the E. R. Miles. So we get miles, and then the units of the three are ours. We get miles per hour and then on our left side of our equation, we have our speed, which is a rate so our units of miles per hour are correct on the right side, too. So this is our

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