Crew B earns $315 after 3 hours, $525 after 5 hours, and $735 after 7 hours of work. Explain whether or not crew B's data show a proportional relationship. If the data are proportional, identify the constant of proportionality?

1 Answer
Nov 9, 2016

Answer:

Crew B's pay data has a proportional relationship at #($105)/(hr)#

Explanation:

The formula for pay rate is #r = p/t# where #r# is the pay rate, #p# is the actual pay and #t# is the time worked.

Substituting the actual pay and time worked for each of the examples gives us:

#r_1 = ($315)/(3hr) = $105/(hr)#

#r_2 = ($525)/(5hr) = $105/(hr)#

#r_3 = ($735)/(7hr) = $105/(hr)#