Answer: 71.1minutes
Step-by-step explanation:
From the question, we were given monthly cost of calls and amount of call per minute.
To express the monthly cost in terms of minutes of call time will be :
Monthly cost = call per minute x f
Let minutes of call time be f
13.5= 0.19 x f
13.5 = 0.19f ....divide both sides by 0.19
f = 13.5/ 0.19
f= 71.1 minutes
Answer:
<u>Step-by-step explanation:</u>
Move all of the x's to one side and everything else on the other.
ax = bx + c
ax - bx = c <em>subtracted bx from both sides</em>
x(a - b) = c <em>factored out the like term of "x" on left side</em>
<em>divided both sides by (a- b)</em>
2x = x + 7 → a = 2, b = 1, c = 7
x = 7
<u>Check:</u>
2x = x + 7
<u>-x </u> <u>-x </u>
x = 7
Answer:10.5 or 10
Step-by-step explanation:
Answer:
Step-by-step explanation:
In the morning he works four hours and 15 minutes and in the afternoon he works four hours and 15 minutes for a total of eight hours and 30 minutes. 30 minutes is 1/2 of an hour so he works for a total of 8 1/2 hours. Multiply this by his hourly rate which is $15 and this gives you $127.50
15 x 8.5 = 127.5