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equations and inequalities

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by jasonc » Sat May 31, 2008 6:50 pm
shade 1 is equal proportion, so just find the difference in material to see how many shade 2s we need to make.

540-400 = 140

since every time we make a shade 2, we shirnk that difference in material by 4 --(because 6-2 = 4)--, we need to mix 140/4 batchs of shade 2 = y = 140/4 = 35 = choice B
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by molt_llest » Sun Jun 01, 2008 3:41 am
I still don't get it, I think I don't understand the question. Could you explain all the steps you do until arrive the solution.
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by netigen » Sun Jun 01, 2008 11:31 am
Best approach is to plug in numbers:


Start with 50
for sample 1 - 300 + 100
you are left with A = 140 and B = 300 A != B

now try 35
for sample 2 - 210 + 70
you are left with A = 330 and B = 330 A = B
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