Answer:
Sum of the sequence (Sn) = 33,859
Step-by-step explanation:
Given:
Sequence = 685+678+671+664+...+6
Find:
Sum of the sequence (Sn)
Computation:
a = 685
d = 678 - 985 = -7
an = 6
an = a+(n-1)d
6 = 685+(n-1)(-7)
-679 = (n-1)(-7)
97 = n-1
n = 98
So,
Sum of the sequence (Sn) = (n/2)[a+an]
Sum of the sequence (Sn) = (98/2)[685+6]
Sum of the sequence (Sn) = (49)(691)
Sum of the sequence (Sn) = 33,859
Answer:
the individual price of a popcorn is $8.
Step-by-step explanation:
p+2d=14 is the price with deal
p+2d=14+4 if there was no deal
plug 5 into the equation as d
2(5)+p=18
solve for p.
p=8
The length is 28 because 76 -10x2 is 56 divided by 2 is 28
His work should have looked like this.
2x + y = 5
x − 2y = 10
y = 5 − 2x
x − 2(5 − 2x) = 10
x − 10 + 4x = 10
5x − 10 = 10 When he added in both sides, he subtracted 10 from 10,
5x = 20 instead of adding 10 from 10 to make 20.
x = 4
2(4) + y = 5
8 + y = 5
y = -3
Answer:
Put all the first column in the box, press check. Then all 2nd column, but replace the picture with the 3rd picture. Then the 3rd column. They are all going to be right.
Step-by-step explanation:
It is arranged for you already.
