(a)
The equation for the cost of gallon.
(a)
Answer to Problem 47PPE
The equation for the cost of g gallon gas is
Explanation of Solution
Given data:
Car travels =
Cost of gas=
Calculation:
a)Let the cost be c and g gallon for gas
֎ For 1 gallon cost of gas is $3.85
֎ for g gallon cost of gas is
The equation for the cost of g gallon gas:
It is a direct variation as it is in the form of
Conclusion:
The equation for the cost of g gallon gas is
(b)
Finding the equation for the cost and miles travelled.
(b)
Answer to Problem 47PPE
The equation for the cost of gas required for travelling m miles is
Explanation of Solution
Given data:
Car travels =
Cost of gas=
Calculation:
Let the cost be c and g gallon for gas
֎ For 1 gallon cost of gas is $3.85
֎ for g gallon cost of gas is
The equation for the cost of g gallon gas:
It is a direct variation as it is in the form of
Conclusion:
The equation for the cost of g gallon gas is
(c)
Cost of gas buying for a trip of 240mi.
(c)
Answer to Problem 47PPE
Cost of gas buying for a trip of 240mi is $924
Explanation of Solution
Given data:
Car travels =
Cost of gas=
Calculation:
Cost of gas buying for a trip of 240mi:
Conclusion:
Cost of gas buying for a trip of 240mi is $924
Chapter 5 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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