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In order to get a thicker sauce, a restaurant owner combines a sauce that is 70% tomato paste with the original sauce, which is 40% tomato paste. How much of each should be used to make 5 L of the new 60% tomato paste sauce?

 Feb 12, 2020
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tomatoes in ingredients = tomatoes in final sauce

 

Amount of 70% = x

amount of 40% =  (6-x)

 

70 % (x)    +   40% (5 L - x)     =   60% ( 5 L)

.7 x           + .4 (5-x)                = .6 (5)                       SOlve for 'x' the amount of 70%           then 40% = 5-x

 Feb 12, 2020

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