Answer:
H=310
Step-by-step explanation:
This problem is a great systems of equations problem--you have two different variables: song size and number of songs.
Let's call the number of standard version downloads (S) and the high quality downloads (H).
You can make two statements:
For number of songs downloaded: S + H = 910
For download size: 2.8(S) + 4.4(H) = 3044.
S will be the same number in both equations and H will be the same number in both equations, so to find S, we can rearrange the first statement to H = 910 - S, then substitute or plug in (910 - S) wherever you see an H in the second equation so that you have only S's in your equation. Should look like this:
2.8(S) + 4.4(910 - S) = 3044
2.8S + 4004 - 4.4S = 3044
-1.6S = -960
s = 600
Your question only asks for the standard version downloads, but to help you out in future Systems situations-
You can also solve for H once you have S by plugging it into either of your equations like this:
600 + H = 910
-600
Hope this helps!
Answer:
It might be 10 but tell me if I'm right or wrong
Step-by-step explanation:
Find current interest:
=$2543.32 * 17.4%
=2543.32 * 0.174
=442.537
Add the interest to the current balance:
=2543.32 + 442.537
=2985.857
Add new transaction:
=2985.857 + 320
=3305.857 rounded to 3305.86
The answer is C) $3305.86
Hope this helps! :)
Answer:
6(3x−4y)
Step-by-step explanation:
Answer:
p = 
Step-by-step explanation:
Given that p varies inversely with q then the equation relating them is
p = 
← k is the constant of variation
To find k use the condition p = 2 when q = 1, thus
k = pq = 2 × 1 = 2
p = ← equation of variation
