SOLUTION: Jamie sells handcrafted dolls at local art fairs. She sells small dolls for $15 and large dolls for $40. At the end of the Little town art fair, she determined that the total amoun

Question 904341: Jamie sells handcrafted dolls at local art fairs. She sells small dolls for $15 and large dolls for $40. At the end of the Little town art fair, she determined that the total amount she made by selling 12 dolls was $255. Determine the number of small and the number of large dolls that she sold.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
a+b=12,
15*a+40*b=255
a=12-b
15*(12-b)+40*b=255
180-15b+40*b=255
25*b=75
b=3
a=12-b
a=9 at $15 and b=3 at $40
check
9+3=12
15*a+40*b=255
15*9+40*3=255
135+120=255
255=255
ok

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