Answer:
54
Step-by-step explanation:
x-1=3
2xy=24
3+24=27
27·2=54
K=1/3
simplify each bracket, put all numbers on the left hand side, equal it to 0 and solve for k
Answer:
3,717,000
Step-by-step explanation:
The calculation of paperback copies is shown below:-
Let us assume hardback copies is x, so paperback copies will be 9x
now the equation is
35,000 + x + 9x = 448,000
10x = 448,000 - 35,000
10x = 413,000

= 41,300
Therefore, the paperback copies are
= 
= 3,717,000
Hence, the paperback copies is 3,717,000