Mathematics
Grade 9
15 min
Evaluate variable expressions involving rational numbers
Evaluate variable expressions involving rational numbers
Tutorial Preview
1
Evaluate 4x + 1/3 when x = 1/2.
2
Evaluate 10 - 2.5y when y = 0.8.
3
Evaluate (a/b) + 5 when a = -3/4 and b = 1/2.
Sample Practice Questions
Easy
Evaluate x + 2.5 when x = 1.5.
0.3
1.3.5
2.4
3.4.5
Easy
Evaluate 2y when y = 3/4.
0.3/2
1.3/8
2.6/4
3.1/2
Easy
Evaluate z - 1 when z = 5.2.
0.4
1.4.2
2.5.1
3.6.2
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