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Algebra I Exercises: Variables in Algebra


Question Group #1
Directions and/or Common Information: 
Evaluate each algebraic expression.


5 + x when x = 4
1. 





4x - 2 when x = 2
2. 





(m/2) + 7 when m = 10
3. 





(12/k) + y   when k = 6 and y = 5
4. 




Question Group #2
Directions and/or Common Information: 
Determine the interest earned given the following figures.


Principle = $1,000
Rate = 3%
Time = 1 year
1. 





Principle = $22,000
Rate = 5.8%
Time = 6 months
2. 





Principle = $2,000
Rate = 12%
Time = 4 months
3. 





You place $10,000 in a bank account with an interest rate of 5.5%, and let it accrue interest, how much will you have at the end of 20 years (interest + principle)? How much will you have made in interest alone after 20 years? At the end of 50 years?
4. 




Question Group #3
Directions and/or Common Information: 
Convert the Celsius temperature measurements into Fahrenheit measurements.


10°C
1. 





22°C
2. 





90°C
3. 





0°C
4. 




Question Group #4
Directions and/or Common Information: 
Calculate the distance traveled with the given variable. Round your answer to the nearest tenth.


rate = 5 mph and time = 10 hours
1. 





rate = 12 mph and time = 22 min
2. 





rate = 37 kph and time = 56 min
3. 





rate = 58 mph and time = 20 sec
4. 








B Horn

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