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:
a = 2.6
Step-by-step explanation:
10 + 25a = 75
- 10. - 10
25a = 65
÷25. ÷25
a = 2.6
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
That concentration would be
60 g
---------- = 60/300 = 1/5 (or, if you prefer, 1:5).
300 g
Answer:
8/25
Step-by-step explanation:
8/25
Answer:
the third one
Step-by-step explanation:
