She has $11.30 and dimes and quarters the number of dimes three more than three times the number of quarters how many of each are there

Answer 1

D = 3Q+3

10D + 25Q = 1130

10(3Q+3) + 25Q = 1130

30Q + 30 + 25Q = 1130

55Q + 30 = 1130

55Q = 1100

Q = 20 ---> D = 3Q+3 = 3(20)+3= 60+3 = 63

20 Quarters and 63 dimes...

20 (0.25) + 63(0.10) =

$5 + 6.30 = $11.30

Yes, 20 Quarters and 63 dimes