Answer:
30 +0.45(m -500) . . . . for m > 500
Step-by-step explanation:
If talk time is "m" minutes, then the number of "additional minutes" is ...
m -500
The cost of those is $0.45 each, so (in dollars), the charge for additional minutes is ...
0.45(m -500)
The charge of $30 applies regardless of the number of minutes, so is added to the minutes charge. The total cost of a bill for talking more than 500 minutes is ...
30 +0.45(m -500)
_____
The cost for talking 500 minutes or less is simply 30.
Answer:
Value of 77 degree Fahrenheit is 25 degree Celsius.
Step-by-step explanation:
Given:
Fahrenheit = 77 (degree).
To convert in Celsius .
Formula of conversion to be used =
Plugging the values of
in the above equation.
We have,
⇒
⇒
⇒
⇒
⇒
⇒
(degrees)
So the value of 77 degrees in Fahrenheit scale is equivalent to 25 degrees in Celsius scale.
Answer:
A = (12h x b1) + (12h x b2)
A = 12hb1 + 12hb2
A - 12hb1 = 12hb1 - 12hb1 +12hb2
A - 12hb1 = 12hb2
(A - 12hb1) / (12h) = (12hb2) / (12h)
b2 = (A - 12hb1) / (12h)
It would be D. Since 12 is already a positive number