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Secondary 1 | Maths
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I need help with b
Date Posted: 3 years ago
Views: 185
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done
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clear
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Using inequality eqn
Date Posted:
3 years ago
To compare, either take average month or Full year:
Consider 1 average month:
1st Scheme = (100+12)/100 * 2400
= 1.12 * 2400
= $2688
2nd scheme = (100+8)/100 * 2400 + 1000/12
= 1.08 * 2400 + 83.33
= $2675.33 (2 decimal Place)
Hence first scheme is better.
B) let new salary be S
equate both sides:
1.12 * S = 1.08 * S + 83.33
0.04S = 83.33
S = $2083.25
If new salary is $2083.25, both schemes will give same amount,
To make 2nd scheme more worthy,
Lowering the salary will make the annual bonus more worthy,
Hence the new salary: $2083 or below will make 2nd scheme better //
Consider 1 average month:
1st Scheme = (100+12)/100 * 2400
= 1.12 * 2400
= $2688
2nd scheme = (100+8)/100 * 2400 + 1000/12
= 1.08 * 2400 + 83.33
= $2675.33 (2 decimal Place)
Hence first scheme is better.
B) let new salary be S
equate both sides:
1.12 * S = 1.08 * S + 83.33
0.04S = 83.33
S = $2083.25
If new salary is $2083.25, both schemes will give same amount,
To make 2nd scheme more worthy,
Lowering the salary will make the annual bonus more worthy,
Hence the new salary: $2083 or below will make 2nd scheme better //
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