Asked by idkkk
Easy to Find, a computer data base, charges $30/h during peak hours to access its records. The charge during off-peak hours is $12/h. Indigo Research was billed $876.00 last month for 40 hours of access time. Using a system of equations, find the number of hours charged for usage during peak times.
Answers
Answered by
Bosnian
p = peak hours
o = off-peak hours
last month for 40 hours of access time means:
p + o = 40
Indigo Research was billed $876.00 means:
p • 30 + 12 • o = 876
Sstem of equations is:
p + o = 40
30 p + 12 o = 876
Try to solve this system of equations.
The solution is:
p = 22 , o = 18
Check result:
p + o = 22 + 18 = 40 hours
30 p + 12 o = 30 • 22 + 12 • 18 =
660 + 216 = $876
o = off-peak hours
last month for 40 hours of access time means:
p + o = 40
Indigo Research was billed $876.00 means:
p • 30 + 12 • o = 876
Sstem of equations is:
p + o = 40
30 p + 12 o = 876
Try to solve this system of equations.
The solution is:
p = 22 , o = 18
Check result:
p + o = 22 + 18 = 40 hours
30 p + 12 o = 30 • 22 + 12 • 18 =
660 + 216 = $876
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