1. In a cash register are 87 bills, 5\'s and 1\'s only. If theirvaluue is 179.00
ID: 3088970 • Letter: 1
Question
1. In a cash register are 87 bills, 5's and 1's only. If theirvaluue is 179.00, how many of each kind of bill are there? 2.A 50% saline solution is mixed with a 75%SALINE SOLUTION TOGET A 60L of a 60% saline SOLUTION. How many liters of eachsolution should be mixed?? Thank yoou for the help!! 1. In a cash register are 87 bills, 5's and 1's only. If theirvaluue is 179.00, how many of each kind of bill are there? 2.A 50% saline solution is mixed with a 75%SALINE SOLUTION TOGET A 60L of a 60% saline SOLUTION. How many liters of eachsolution should be mixed?? Thank yoou for the help!!Explanation / Answer
1. 179 = 5 x + y x + y = 87 y = 87 - x substitute 179 = 5x + 87 - x solve for x plug back into x + y = 87 2. .5x + .75y = .6*60 x + y = 60 substitute x = 60-y .5(60 - y) +.75y = 36 30 - .5y +.75y = 36 solve for y plug back into x + y = 60
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