Prealgebra: Variables
Problems
Problem :
Identify the variable(s) in the following expressions:
a)
5k + 1
b)
7b
2 - (6×5)
c)
19 - y
d)
2×(h + w)
Problem :
If
m
represents the number of miles Katy ran, write an expression
for:
a) The distance Katy ran plus 3 miles
b) Half of the distance Katy ran
Problem :
If
b
represents the number of hours Becky spent painting, write an
expression
for:
a) Twice the time Becky spent painting
b) Twice the time Becky spent painting, plus 8 more hours
Problem :
If
s
represents the number of shots Jeff made on the basketball court,
write an
expression for:
a) The number of shots Jeff would have made if he had made 4 fewer shots
b) The number of shots Jeff would have made if he had made 3 times as many
shots
Problem :
If
k
represents the amount of money (in dollars) Kara spent at a thrift
shop, write
an expression for:
a) The amount of money she would have spent if she had spent 3 more dollars
b) The amount of money she would have spent if she had spent 8 times as much,
plus 6
more dollars
