Well 10% is $6.50, so just multiple that by 2 and you get your fill tip of $13. Then you just add them together and you get $78.
The equation should have been written as 1.25x+1.49y=100.
The error made in the first equation was that Barbara did not include a variable next to the term 1.49. Since the ice tea is sold for $1.49 per bottle, a variable should be included to represent however many bottles of iced tea she sold.
Answer:
it will take him 10 weeks or 2 and a half months
Step-by-step explanation:
x·1/2·7/8·6/7·1/2 = 12 --> x = 64 Stickers
