SOLUTION: There is a flat fee x plus y dollers for every hour
A person used 4 hours and had a fee of 63
another person used it for 6 hours and had a fee of 87
What is the value of the fla
Algebra.Com
Question 180499: There is a flat fee x plus y dollers for every hour
A person used 4 hours and had a fee of 63
another person used it for 6 hours and had a fee of 87
What is the value of the flat fee (x) and additional fee (y)
Please explain steps
Found 2 solutions by stanbon, Mathtut:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
There is a flat fee x plus y dollers for every hour
A person used 4 hours and had a fee of 63
another person used it for 6 hours and had a fee of 87
What is the value of the flat fee (x) and additional fee (y)
-----------------------------------------------------------------
Points:
(4,63) and (6,87)
----------
slope = (87-63)/(6-4) = 24/2 = 12
----------
intercept:
63 = 12*4 + b
b = 63-48
b = 15
----------
Equation:
y = 12x + 15
---
Flat fee = $15
Additional fee = $12 per hour
===================================
Cheers,
Stan H.
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
let x be the flat fee and y be the additional fee
:
x+4y=63.........eq 1
x+6y=87.........eq 2
:
subtract all terms from eq 2 from eq 1
:
x terms will be eliminated because x-x=0. We are left with 4y-6y=63-87
:
-2y=-24
:
additional fee
:
take y's found value and plug it into either eq 1 or 2
:
I am using eq 1
:
x+4(12)=63
:
flat fee
RELATED QUESTIONS
I have a question involving Algebra 1
A rental company charges a flat fee of x dollers (answered by Mathtut)
a taxi driver charges a flat fee plus a rate per kilometer driven. One day a person... (answered by richwmiller)
The graph for a hotel charges a $100 flat fee plus $15 per person for a banquet. How will (answered by mananth)
A computer bulletin board service charges a flat fee of $10 per month or $4 per month... (answered by checkley71)
Hi, I hope someone can help me. My problem is:
Niagara Electric charges a flat fee of (answered by ankor@dixie-net.com)
Apolline is mowing lawns for a summer job. For every mowing job, she charges an initial... (answered by ikleyn)
A cab ride in a small town cost a base fee of nine dollars per person plus $.50 for every (answered by Boreal)
Yuk! I hate applications. I always get mixed up picking picking what goes where in the... (answered by Nate)
A cab ride in a small town costs a base fee of $9.00 per person, plus $0.50 for every... (answered by josgarithmetic)