SOLUTION: How much 1% fat milk should we mix with 15% fat cream to obtain 5 litres of 3% fat mixture?
(A) 5/7 l. (B) 1 l. (C) 3 l. (D) 4 l. (E) 30/7 l.
Algebra.Com
Question 206585: How much 1% fat milk should we mix with 15% fat cream to obtain 5 litres of 3% fat mixture?
(A) 5/7 l. (B) 1 l. (C) 3 l. (D) 4 l. (E) 30/7 l.
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
.15x+.01(5-x)=.03*5
.15x+.05-.01x=.15
.14x=.15-.05
.14x=-.1
x=.1/.14
x=.714 liters of 15% milk is used.
5-.714=4.286 liters of 1% milk is used.
30/7 1 is the ratio.
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