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McMaster University
Idaho State University
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 $\mathrm{km}^{3}$ .
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 $C=$ _________.
01:04
Using Models Use the model given to answer the questions about the object or process being modeled. Mintonville School District residents pay a wage tax $T$ that is modeled by the formula $T=0.005 x .$ Find the wage tax paid by a resident who earns $\$ 62,000$ per year.
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.
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Yeah, we're being asked to find the value of two. P Minus are if P is equal to seven and R is equal to five. So in this case, we're being given a variable expression. We have this expression to P minus are and again we're being asked to find the value of it when P is equal to seven and R is equal to five. So that do this? What we need to dio to start by doing is substituting seven in place A P and five in place of our into our expression. So when we do this, we're gonna have to times seven minus are which is equal to five. Now we just have a numerical expression, so we just need to evaluate it. Well, first thing will always take care of our multiplication. Well, two times seven is equal to 14. So we're left with 14 minus five and 14 minus five is equal to nine. So what we've found is the value of our given expression to P minus are when P is equal to seven and R is equal to five is just nine
Linear Functions
Solve Linear Inequalities
Functions
Systems of Equations and Inequalities
Graph Linear Functions
00:50
08:58