Answer:
<em>x = 14</em>
Step-by-step explanation:
-1/5 (x - 4) = -2
Multiply both sides by -5.
x - 4 = 10
Add 4 to both sides.
x = 14
There were a total of 400 downloads of the 4.4MB and 690 downloads of the 2.7MB
M: cost per hour
b: initial charge fee
x: hours (h)
To make both company to charge the same amount:
12x+376=15x+280
376-280=15x-12x
96=3x
X=32
So it took 32 hour to 2 company charge the same amount.
The cost gonna be: 12.(32)+376=760$
I think the answer is A. Or the answer is A.
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