What would the algebraic expression for this scenario be??
While Gerald was at the post office he purchased some 40 cents stamps and three times as many 30 cents stamps. In all the stamps costed $20.80. How many of each did he buy??

Question

What would the algebraic expression for this scenario be?? 
While Gerald was at the post office he purchased some 40 cents stamps and three times as many 30 cents stamps. In all the stamps costed $20.80. How many of each did he buy??

anonymous · Answer

you can also solve the proble, but mainly i just wanted the equation

anonymous · Answer

40+30x=20.80

anonymous · Answer

40+(3x)30=20.80

anonymous · Answer

are these both suggestions or did u do one of them wrong??

anonymous · Answer

please answer.........................
THANKS :)

anonymous · Answer

the second one is the right one

anonymous · Answer

haha thanks,,,  but dont you hace it all in cents (0.80) form or dollar form ($5)