Answer:
Explanation:
The th term of an arithmetic sequence is explicitly defined as where is the first term of the sequence and is the the common difference.
From the given first five terms of the sequence we can see that the first term is so .
The common difference, , can be calculated by so we'll find the common difference of the given sequence by letting
.
Now let's plug everything we know.
Answer:
4 movies, $20
Step-by-step explanation:
Given data
Family Video
charges $10 for a monthly membership and
$2.50 per movie
let the number of movies be x
and the charge for x movies be y
y= 10+2.5x----------1
Babe's Movies
charges a $12
membership and $2 per
movie.
let the number of movies be x
and the charge for x movies be y
y= 12+2x----------2
equate 1 and 2
10+2.5x= 12+2x
collect like terms
12-10= 2.5x-2x
2= 0.5x
x= 2/0.5
x= 4 movies
put x= 4 in equation 1 or 2
y= 12+2x----------2
y= 12+2*4
y= 12+8
y= $20
Answer:
62
Step-by-step explanation:
3 x 5 = 15
3 x 2 = 6
2 x 5 = 10
15 x 2 = 30
6 x 2 = 12
10 x 2 = 20
30 + 12 + 20 = 62
Answer:
(15x - 4) units
Step-by-step explanation:
5x-2 + 4x-4 + 6x - 8
15x - 14