Hello :
by : <span>an = an-1 + 9.
n= 2 : a2 =a1+9
a2 = -12+9 = -3
n=3 : a3 = a2 +9
a3 = -3+9 = 6
n = 4 : a4 = a3 +9
a4 =6+9 = 15</span>
X should be 13 not sure about y
Answer:
13/48
Step-by-step explanation:
I take the middle sign to be plus.\
3/4//4/5 = 3/4 * 5/4 = 15/16
15/16 - 2/3 =
The lowest common denominator would be 48: 16 and 3 are prime to each other.
45/48 - 32/48 = 13 / 48
Where did the minus come from? I take it that there is a minus sign in front of the 2
I would say a. is not very common.
I did not calculate the rest, I am just canceling out one for you
If Dan divided the pie into eighths, then there would be 8 equal pieces of the pie, since 1 * 1/8 = 8.
Hope that helped =)
