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max2010maxim [7]
4 years ago
10

A scientist mixes water (containing no salt) with a solution that contains 35 % salt. She wants to obtain 245 ounces of a mixtur

e that is 5 % salt. How many ounces of water and how many ounces of the 35 % salt solution should she use?
Mathematics
1 answer:
Misha Larkins [42]4 years ago
8 0

Answer:

Step-by-step explanation:

W = Water

S = 40% salt (if available)

-------------

W + S = 200

w*0 + s*40 =(w+s)*s

40s=5W + 55

5w = 355

w=200 -s

5(200-s) =355

1000 - 5 s =35s

40s =1000

s= 25

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