B) Find the value of n. 1) 5% of 5=n
2) 2% of 8 = n
3) 10% of 90 - n
4) 48% of 250 = n
5) 80% of 60 = n
6) 28% of 45 = n
7) 30% of P180.00 = n
8) 75% of P12.00 = n
if you dare insult you will be sent to and you will turn into cheese

1) 2.5

2) 0.16

3) 9

4) 120

5) 48

6) 12,6

7) 54

8) 90

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb