The Answer Would Be 64 because if you divide 8/4.5 its equal to 64/36.
Answer:
what does DBA mean (sorry dont knowhow to comment)
Step-by-step explanation:
Copper: Nickel = 4:1
a) How much copper needed for 20 kg nickel
C:N = 4: 1
C:20 = 4:1
C/20 = 4/1 Cross Multiply
C*1 = 4*20
C = 80
80kg Copper would be needed.
b) How much Nickel would be needed for 20 kg of Copper
C:N = 4: 1
20:N = 4:1
20/N = 4/1 Cross Multiply
4*N = 1*20
4N = 20 Divide both sides by N.
N = 20/4 = 5
5kg Nickel would be needed.
If a sequence is defined recursively by f(0)=2and f(n+1)=-2f(n)+3 for n> 0 then f(2) is equal to what
