Answer:
Step-by-step explanation:
Itunes : 0.99 per song......let d represent the number of songs
so the expression for this is : 0.99d
Napster : 10 bucks + 0.89 per song
this expression would be : 10 + 0.89d
so if u want to find out when they will be the same, set them equal to each other and solve for d
0.99d = 10 + 0.89d
0.99d - 0.89d = 10
0.10d = 10
d = 10 / 0.10
d = 100.......so 100 songs must be purchased <===
check it...
itunes : napster :
0.99(100) = $ 99 10 + 0.89(100) = 10 + 89 = $ 99
it checks out :)
Answer:
16, -8
Step-by-step explanation:
Let the terms of the geometric sequence be 
.
We know that 
and thus, 
.
This means 
and 
.
Step-by-step explanation:
3(5x - 4) = 2(7x)
=> 15x - 12 = 14x
=> x = 12
<em>By the options given, I would say none of the options are correct!</em>
Answer:
A is the answer
Step-by-step explanation:
Becuase if it has the same radius and the same height. then they will both be equal.
