Clare is paid $90 for 5 hours of work. At this rate, how many seconds does it take for her to earn 25 cents?

Question

I dont really understand this and ive read it lot of times

Answer 1

50 seconds gets her one quarter

90/5(60)(60) = .25/x

dollars/seconds =

90/60(60)(5) = (1/4)/x where x= seconds to earn 25 cents

cents/seconds =

9000/3600(5) = 25/x

90/36(5) = 25/x

10/20 = 25/x

1/2 = 25/x

cross multiply

x = 50 seconds to earn 25 cents

x = 50 seconds to earn 25 cents

(50)(60/50) = 1 minute to earn 25(6/5 = 30 cents

60 minutes = 1 hour to earn 60(.3) = $18

5 hours to earn 5(18) = $90