The Best-Ever long distance phone company charges 5¢ per minute plus a connection fee of 39¢ per call. The UR Phone company has a connection fee of 60¢ per call but charges only 3.5¢ per minute. Charlene wants to find the length of call for which the two companies charge the same amount. Let x = the length of the call in minutes and y be the charge for the call in cents.

Which system of equations can Charlene use to find her answer?

A. 5y=39x
3.5y=60x

B. y=5x+39
y=3.5x+60

C. y=39x+5
y=60+3.5x

D. x=39y+5
x=60+3.5y