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Secure Itntps:/www.-awh.aleks.com/alescgit/hsl.exe/1o.u-Ighslk7)eP3jH-B-WcJckole7CavA : . -December 2017-04 -Final Exam | 50f 35 12 15 16 17 18 20 10 ch conta-salt. She knows that Solution A is 35% salt and Solution B is 85% 2 A scientist has two solutions, which she has labeled Solution A and Solution B. E salt. She wants to obtain 140 ounces of a mixture that is 40% salt. How many ach solution should she use? Note that the ALEKS graphing calculator can be used to make computations easi Solution A: .©ounces Solution 8: ounces

Explanation / Answer

Solution:-
Let a = #ounces. of solution A
Then 140-a = # ounces. solution B. Then
0.35a + 0.85(140-a) = 0.40*140,
0.35a + 119 - 0.85a = 56
-0.5a + 119 = 56
-0.5a = 56 - 119
a = 126

=> a = 126 ounces of solution A , and 14 ounces of solution of B.

=> Solution A : 126 ounces

=> Solution B : 14 ounces

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