Inequality:
To know which combination represents a solution, we have to replace the values given and see if the inequality is true.
• 5 necklaces (a) and 40 bracelets (b)
As this condition is TRUE, then 5 necklaces and 40 bracelets is a solution.
• 10 a and 20 b
As this condition is NOT true, then 10 a and 20 b is NOT a solution.
• 15 a and 15 b
As this condition is NOT true, then 15 a and 15 b is NOT a solution.
• 20 a and 10 b
As this condition is TRUE, then 20 a and 10 b is a solution.
Answer (solutions):
• 5 necklaces and 40 bracelets: yes
,
• 10 necklaces and 20 bracelets: no
,
• 15 necklaces and 15 bracelets: no
• 20 necklaces and 10 bracelets: yes