Initial charge charged by the Singer A = $50 Hourly charge of Singer A = $20 Initial amount charged by Singer B = $100 Hourly rate charged by Singer B = $10 Let us assume the time after which both singers will charge the smae amount of money = x Then 50 + 20x = 100 + 10x 20x -10x = 100 - 50 10x = 50 x = 50/10 = 5 So after 5 hours both Singer A and Singer B will charge the same amount of money. I hope the procedure is clear to you and you can attempt such problems in future without needing any kind of help.
but we still have the .5 so we multiply that by 3 which equals to 1.5 add that to 24 which makes 25.5 and because only one of the numbers was negative it turns 25.5 into -25.5.
