SOLUTION: Mr. Green needs to hire landscaping equipment. A local plant hire company have quoted two alternative prices: £240 for 10 days hire or £180 for 7 days hire. These prices are compri

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Mr. Green needs to hire landscaping equipment. A local plant hire company have quoted two alternative prices: £240 for 10 days hire or £180 for 7 days hire. These prices are compri      Log On


   



Question 808698: Mr. Green needs to hire landscaping equipment. A local plant hire company have quoted two alternative prices: £240 for 10 days hire or £180 for 7 days hire. These prices are comprised of a fixed standard charge plus a daily rate charge. Both prices are exclusive of VAT.
a) draw a straight line graph to determine the fixed standard charge and the daily rate charge. Explain fully the mathematical principles involved.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
240=m*10+b,
180=m*7+b
b = 40, m = 20
fixed rate is 40
daily rate is 20