Question

please solve the qs in image attached to it​

Answer 1

Step-by-step explanation:

He has 40 coins

Step-by-step explanation:

20 cent: x

10 cent: y

y: x + 12

10y + 20x = 5.40 dollars

10(x+12) +20x = 5.40 X 100

10x + 120 20x540 cents

10x + 20x = -120 + 540

30x = 420

30x = 420

30

x = 14

x + 12 = 26

26 + 14 = 40

Thus he has 40 total coins, comprising of 14 coins 20 cents and 26 coins of 10 cents.