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01:56

Taylor S.

Suppose gas costs $\$ 3.50$ a gallon. We make a model for the cost $C$ of buying $x$ gallons of gas by writing the formula $C=$ _________.

0:00

Kelli P.

Making Models : Write an algebraic formula that models the given quantity. 15. The cost $C$ of purchasing $x$ gallons of gas at $\$ 3.50$ a gallon

Kyle I.

Using Models Use the model given to answer the questions about the object or process being modeled. The distance $d$ (in mi) driven by a car traveling at a speed of $v$ miles per hour for $t$ hours is given by $$d=v t$$ If the car is driven at 70 milh for 3.5 $\mathrm{h}$ , how far has it traveled?

02:07

Create your own quiz or take a quiz that has been automatically generated based on what you have been learning. Expose yourself to new questions and test your abilities with different levels of difficulty.

Create your own quiz

first example, Let's look at the problem. Seven. Tom's one plus non B minus eight times Negative five V minus six. Now remember, Since we're simplifying algebraic expressions, our goal is to get as few terms as possible. In order to do that, we want to get rid of anything like I parentheses. So now I have to parentheses in this problem. So let's go ahead and let's get rid of our parentheses by doing distributive property. So we're gonna multiply seven times one. Now we have seven. Seven times nine v is 63 V. So that's what got rid of our first parentheses. Now let's get rid of our second negative eight times negative. Five is 40 V and negative eight times negative. Six is positive. 48. So now that we've gotten rid of our parentheses, Weaken start combining like terms. Let's start with our terms that had the variable. We have a 63 via positive 63 V and a positive for TV. We can add those two together because they do have the same bearable 63 V plus 40 v will give me 103 V. I can also combine any Constance I have. So for this one, I can combine positive seven and positive 48. And when I combine those, I get 55. So this is now simplified to 103 V plus 55.

Linear Equations and Functions

Linear Equations and Inequalities

Matrices and Determinants

Quadratic Equations

Applications of Trigonometric Functions

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