SOLUTION: A scientist mixes water (containing no salt) with a solution that contains 40% salt. She wants to obtain 200 ounces of a mixture that is 5% salt. How many ounces of wat

Question 1096481: A scientist mixes water (containing no salt) with a solution that contains
40%
salt. She wants to obtain
200
ounces of a mixture that is
5%
salt. How many ounces of water and how many ounces of the
40%
salt solution should she use
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A scientist mixes water (containing no salt) with a solution that contains
40% salt. She wants to obtain 200 ounces of a mixture that is 5% salt. How many ounces of water and how many ounces of the 40% salt solution should she use
---------------
W = Water
S = 40% salt (if available)
-------------
W + S = 200
W*0 + S*40 = (W+S)*5
40S = 5W + 5S
5W = 35S
W = 200-S
5(200-S) = 35S
1000 - 5S = 35S
40S = 1000
S = 25

RELATED QUESTIONS
A scientist mixes 40% water (containing no salt) with a solution that contains salt. She (answered by ikleyn)

A scientist mixes water (containing no salt) with a solution that contains 55% salt. She... (answered by math_tutor2020,ikleyn,greenestamps)

A scientist mixes water (containing no salt) with a solution that contains 30% salt.... (answered by josgarithmetic,ikleyn)

A scientist mixes water (containing no salt) with a solution that contains 30% salt. She... (answered by josmiceli)

A scientist mixes water (containing no salt) with a solution that contains 55% salt. She... (answered by josgarithmetic)

A scientist mixes water (containing salt) with a solution that contains 20% salt. She... (answered by greenestamps,josgarithmetic,ikleyn)

estion A scientist has two solutions, which she has labeled Solution A and Solution... (answered by josgarithmetic,ikleyn)

A scientist has two solutions, which she has labeled Solution A and Solution B. Each... (answered by jorel1380)

A scientist has two solutions, which she has labeled Solution A and Solution B. Each... (answered by Maths68)