Answers to Odd-Numbered Problems B EXERCISE 1.3 (b (c) Problems 1–8 involve prediction. -1. Predicting Sales Suppose the sales of a company are given by So S= $5000x + $80,000 En where x is measured in years and x 0 corresponds to the year 2002. (a) Find S when x = 0. (b) Find S when x = 3. (c) Find the predicted sales in 2007, assuming this trend 5. SA maldon9 ov of stu ma continues. ma (d) Find the predicted sales in 2010, assuming this trend CO continues. (a 2. Predicting Sales Rework Problem 1 if the sales of the com- pany are given by (b S = $3000x + $60,000 3. Predicting the Cost of a Compact Car In 2000, the cost of a compact car averaged $12,500. In 2003, the cost of a com- pact car averaged $14,450. Assuming that the relationship between time and cost is linear, develop a formula for pre- So for 6. Fir dicting the average cost of a compact car in the future. What ch do you predict the average cost of a compact car will be in inc 2005? Interpret the slope. nb fin 4. Oil Depletion The Yates Oil Field, discovered in 1926 in Texas, through 1999 has produced 1.4 billion barrels of oil. In 1999, the field had an estimated reserve of 600 million barrels. Based on previous production levels, in 2002 the field should have had an estimated reserve of 540 million CO (a) barrels. Now assume the rate of depletion is constant. (b) (c) (a) Write an equation that relates the amount A, in millions of barrels, of oil left in the field at any time t, where t is the year. idsovsidas So

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Answers to Odd-Numbered Problems B
EXERCISE 1.3
(b
(c)
Problems 1–8 involve prediction.
-1. Predicting Sales Suppose the sales of a company are given by
So
S= $5000x + $80,000
En
where x is measured in years and x
0 corresponds to the
year 2002.
(a) Find S when x = 0.
(b) Find S when x = 3.
(c) Find the predicted sales in 2007, assuming this trend
5. SA
maldon9 ov
of
stu
ma
continues.
ma
(d) Find the predicted sales in 2010, assuming this trend
CO
continues.
(a
2. Predicting Sales Rework Problem 1 if the sales of the com-
pany are given by
(b
S = $3000x + $60,000
3. Predicting the Cost of a Compact Car In 2000, the cost of
a compact car averaged $12,500. In 2003, the cost of a com-
pact car averaged $14,450. Assuming that the relationship
between time and cost is linear, develop a formula for pre-
So
for
6. Fir
dicting the average cost of a compact car in the future. What
ch
do
you predict the average cost of a compact car will be in
inc
2005? Interpret the slope.
nb
fin
4. Oil Depletion The Yates Oil Field, discovered in 1926 in
Texas, through 1999 has produced 1.4 billion barrels of oil.
In 1999, the field had an estimated reserve of 600 million
barrels. Based on previous production levels, in 2002 the
field should have had an estimated reserve of 540 million
CO
(a)
barrels. Now assume the rate of depletion is constant.
(b)
(c)
(a) Write an equation that relates the amount A, in millions
of barrels, of oil left in the field at any time t, where t is
the year.
idsovsidas
So
Transcribed Image Text:Answers to Odd-Numbered Problems B EXERCISE 1.3 (b (c) Problems 1–8 involve prediction. -1. Predicting Sales Suppose the sales of a company are given by So S= $5000x + $80,000 En where x is measured in years and x 0 corresponds to the year 2002. (a) Find S when x = 0. (b) Find S when x = 3. (c) Find the predicted sales in 2007, assuming this trend 5. SA maldon9 ov of stu ma continues. ma (d) Find the predicted sales in 2010, assuming this trend CO continues. (a 2. Predicting Sales Rework Problem 1 if the sales of the com- pany are given by (b S = $3000x + $60,000 3. Predicting the Cost of a Compact Car In 2000, the cost of a compact car averaged $12,500. In 2003, the cost of a com- pact car averaged $14,450. Assuming that the relationship between time and cost is linear, develop a formula for pre- So for 6. Fir dicting the average cost of a compact car in the future. What ch do you predict the average cost of a compact car will be in inc 2005? Interpret the slope. nb fin 4. Oil Depletion The Yates Oil Field, discovered in 1926 in Texas, through 1999 has produced 1.4 billion barrels of oil. In 1999, the field had an estimated reserve of 600 million barrels. Based on previous production levels, in 2002 the field should have had an estimated reserve of 540 million CO (a) barrels. Now assume the rate of depletion is constant. (b) (c) (a) Write an equation that relates the amount A, in millions of barrels, of oil left in the field at any time t, where t is the year. idsovsidas So
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