please solve the qs in image attached to it
Attachments:
Answers
Answered by
0
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.
Similar questions