Use this space for
20 The diagram below shows the graph of which inequality?
computations.
(1) y
x
1
(3) y
x
1
(2) y
x
1
(4) y
x
1
21 Carol plans to sell twice as many magazine subscriptions as Jennifer.
If Carol and Jennifer need to sell at least 90 subscriptions in all, which
inequality could be used to determine how many subscriptions, x,
Jennifer needs to sell?
(1) x
45
(3) 2x
x
90
(2) 2x
90
(4) 2x
x
90
2
2
22 When 2x
3x
2 is subtracted from 4x
5x
2, the result is
2
2
(1) 2x
2x
(3)
2x
8x
4
2
2
(2)
2x
2x
(4) 2x
8x
4
23 Which expression represents the number of hours in w weeks and
d days?
(1) 7w
12d
(3) 168w
24d
(2) 84w
24d
(4) 168w
60d
[8]
Integrated Algebra – June ’13