SOLUTION: the number d of donations a charity receives varies directly with th number r of requests it mails. the charity sends out 9500 request and receives 420 donations. write an equation

Algebra ->  Probability-and-statistics -> SOLUTION: the number d of donations a charity receives varies directly with th number r of requests it mails. the charity sends out 9500 request and receives 420 donations. write an equation      Log On


   



Question 991450: the number d of donations a charity receives varies directly with th number r of requests it mails. the charity sends out 9500 request and receives 420 donations. write an equation that relates r and d ?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
the number d of donations a charity receives
varies directly with the number r of requests it mails.
d = kr
Find 'k' (the constant of variation)
420 = k 9500
k = 420/9500
k = 0.044 (3 decimal places)
Formula:-
d = 0.044r
Hope this helps :-)