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Campbell University
Harvey Mudd College
University of Michigan - Ann Arbor
Idaho State University
07:29
James C.
Using Models Use the model given to answer the questions about the object or process being modeled. An ocean diver models the pressure $P$ ( in $\mathrm{lb} / \mathrm{in}^{2} )$ ) at depth $d$ (in ft) by $$P=14.7+0.45 d$$ (a) Make a table that gives the pressure for each 10 -ft change in depth, from a depth of 0 ft to 60 $\mathrm{ft}$ . (b) If the pressure is $30 \mathrm{lb} / \mathrm{in}^{2},$ what is the depth?
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?
01:11
Ruirui L.
Making Models : Write an algebraic formula that models the given quantity. 13. The number $N$ of cents in $q$ quarters
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So in this problem, we're being asked to identify the variable and then to state the meaning of the given expression. So let's start with part A. So his first thing we want to do is identify the variable. So remember, the variable is going to be the symbol in this expression. Well, in that case, this is going to be see, so are variable, for this expression is going to be see it's the letter. So now they want us to state the meaning of the expression. We'll think about how you would say it, you would say eight minus C and next exactly the meaning. So we would say that it's eight minus c. So the operation in this case would be subtraction. Now let's go. The part B. We have seven X next to each upper. So the first thing you want to do is establish what the variable is again. The variable is the letter in this case are variable is X. Now they want us to represent the meaning. Well, it doesn't look like we have a simple to represent the operation, but remember when number and variable of touching each other as such that means multiplication. So what this is asking us to do is to multiply seven by X. So what we can say for the meaning is that this is seven times X.
Linear Functions
Solve Linear Inequalities
Functions
Systems of Equations and Inequalities
Graph Linear Functions
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00:50
08:58