I conclude that the sum will be even because any even number can be represented by 2n where n is a whole number
and even numbers are 2 apart, so
the sum of the first 15 are
2n+2(n+1)+2(n+2) etc until we get to 2(n+14)
we can undistribute the 2 from all of them and get
2(n+n+1+n+2...n+14)
and we are sure that whatever is in the parenthasees is a whole number because whole+whole=whole
therefor, the sum is even
if you did want to find the sum then
an=2n
the 15th even number is 30
the first is 2
S15=15(2+30)/2=15(32)/2=15(16)=240
which is even
I think that the answers is b
Answer:
$238.15
Step-by-step explanation:
8.25% = 8.25/100 or 0.0825
Multiply 0.0825 and 220 to get $18.15. That's how much the tax is.
Add 220 and 18.15 to get $238.15
4x+y=3
-5x-8y=-6
C is the one that will help you solve it.
