Question

simplyfied 15-3[2+3{(9-5)-4}]​

Answer 1

Answer:

By cross multiplication, we get:

5 × 12 = 60 and 7 × 8 = 56

However, 60 > 56 ∴  

5  / 8  > 7  /12

 (ii)  5 /9  and  11  /15

 By cross multiplication, we get:

5 × 15 = 75 and 9 × 11 = 99

However, 75 < 99

∴   5 /9  <  11 /15

 (iii)  11 /12  and  15 /16

 By cross multiplication, we get:

11 × 16 = 176 and 12 × 15 = 180

However, 176 < 180

∴   11 /12  <  15 /16

Step-by-step explanation:

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Answer 2

Answer:

9

Step-by-step explanation:

9-5=4

4-4=0

3*0=0

-3*2=-6

15-6=9