Question 1036365
w+y = 35 How many white ones? Well, 35-y:
w = 35-y
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9.95w+13.50y = 415.70 Substitute for w:
9.95(35-y)+13.50y
384.25-9.95y+13.50y = 415.70
3.55y = 31.45
y = 8.86 Check your numbers, the answer should be a round number.