MAT 117 - Problem Set 1.pdf - MAT 117- Problem Set 1...

MAT 117- Problem Set 1
Directions: Show all work as you solve these problems.
I. Scientific Notation and Percent. (Based on the ideas in Objectives I and 4.) (6 points)
Two percent of Sandra's skin cells were burned when she escaped from a fire. If 3.5
X
10
10
of her skin cells
were burned then, how many skin cells were not burned?
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2. Solving for a variable in terms of other variables. (From Objective 4.) (4 points per problem):
a. The pressure, temperature, and volume of an ideal gas are related by the equation
R
=
Pv_
Solve this equation
for n, which is the number of moles
nT
of gas.
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b. The amount of a certain population with limited resources is given by the equation
P
=
v .
Solve this
equation for the constant k. Write your answer so that there is no negative exponent.
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3. (Based on ideas in Objective 3.) (5 points)
The cost of cleaning up pollution