Answer:
X=10
Step-by-step explanation:
Plug 3 into the k in the first equation. Multiply by 3 to cancel out the fraction. This leaves you with x-1=9. Add 1 to both sides and you get x=10.
Answer:
She spent 2 and a half hours doing extra work.
Answer:
6/24
Step-by-step explanation:
Answer:
25 1/3
Step-by-step explanation:
or 25.3
Answer:
(2,9) , (3,8) , (4,7) , (5,6)
Step-by-step explanation:
ab+ba = 10a+b+10b+a = 11a+11b = 11(a+b)
if a+b = 11 then ab+ba = 11²
(a,b) or (b,a) : (2,9) , (3,8) , (4,7) , (5,6)
check: 29+92 = 121 = 11²
56+65 = 121 = 11²
