Math Help Please?
Lina is working furiously to knit scarves and beanies for a craft fair next weekend. Yesterday she completed 1 scarf and 2 beanies, using a total of 15 yards of yarn. The day before, she used 19 yards to knit 1 scarf and 3 beanies. Assuming Lina is using the same pattern and type of yarn for each scarf and beanie, how much yarn does each project require?
1S + 2B = 15 1S + 3B =19 1S Cancels each other out leaving 3B - 2B = 19 - 15 B = 4 Adding this to the equations gives S as 7 (15 - (2 x 4)) = 7 Scarves take 7 yards, Beanies take 4 yards.
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