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00:52

Amy J.

The model $L=4 S$ gives the total number of legs that $S$ sheep have. Using this model, we find that 12 sheep have $L=$ __________ legs.

0:00

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?

06:25

Daniel P.

Using Models Use the model given to answer the questions about the object or process being modeled. The portion of a floating iceberg that is below the water sur- face is much larger than the portion above the surface. The total volume $V$ of an iceberg is modeled by $$V=9.5 S$$ where $S$ is the volume showing above the surface. (a) Find the total volume of an iceberg if the volume show- ing above the surface is 4 $\mathrm{km}^{3}$ . (b) Find the volume showing above the surface for an ice- berg with total volume 19 $\mathrm{km}^{3}$ .

03:07

Taylor S.

Using Models Use the model given to answer the questions about the object or process being modeled. Arizonans use an average of 40 gal of water per person each day. The number of gallons $W$ of water used by $x$ Arizonans each day is modeled by $W=40 x$ . (a) Make a table that gives the number of gallons of water used for each $1000-$ person change in population, from 0 to $5000 .$ (b) If the pressure is $30 \mathrm{lb} / \mathrm{in}^{2},$ what is the depth? (b) What is the population of an Arizona town whose water usage is $120,000$ gal per day?

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this equation, we're gonna work out 27 equals negative. Nine. Tom's Why? Plus five plus six times Y plus eight. Now we're gonna start by doing distributive property on the right side. So we'll go ahead and bring my 27 equals now. So negative. Non town swats negative. Non. Why Negative. Nine times five is negative. 45 six times y is positive six y and six times eight is 48. Let's combine like terms. So we have a negative none Why? And a six y When I combine those, I'm gonna have negative three y and I have negative 45 and positive 48. And when I'm combined those I'm gonna have a positive three. So now we have simplified our equation and we're now ready to solve For why? So we need to isolate or why? So we're going to subtract the three on both sides. So 27 minus three is 24. 24 equals negative three y. So now let's divide by negative three. And when I divide both sides by negative three, I cancel out on one side and 24 divided by negative. Three is negative. Eight and negative eight equals. Why

Linear Equations and Functions

Linear Equations and Inequalities

Matrices and Determinants

Quadratic Equations

Applications of Trigonometric Functions

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