Evaluate each expression if a=2,6=-3,c=-1, and d=4. 2d-a ———- b
1 answer:
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The precise equation that represents the situation is as follows:
- $19, x ≤ 300
- x > 300,
- f(x) = 19 + 0.39(x - 300)
His cell phone plan provides 300 free minutes each month for a flat rate of $19.
let
x = number of minutes used
Therefore,
$19, x ≤ 300
For any minutes over 300, Andrew is charged 0.39 per minute.
Therefore,
if x > 300
f(x) = 19 + 0.39(x - 300)
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Answer:
25
Step-by-step explanation:
ratio 5:6
6x = 5(30)
6x = 150
x = 25