A boy who is 1.8 meters tall stands 1 meter away from a lamppost and casts a shadow 2 meters long. The height of the lamppost is
2 answers:
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Hi there!
3x - 7 ≥ 4x + 2
Subtract 3x from both sides:
3x - 3x - 7 ≥ 4x - 3x + 2
-7 ≥ x + 2
Subtract 2 from both sides:
-7 - 2 ≥ x + 2 - 2
-9 ≥ x
x ≤ -9