SOLUTION: A public pool opened for the summer. A total of 246 people came swimming over the first 3 days it was open. On the first day, 79 came to swim. on the second day, 47 more people swa
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Question 665254: A public pool opened for the summer. A total of 246 people came swimming over the first 3 days it was open. On the first day, 79 came to swim. on the second day, 47 more people swam than on the third day. how many people swam on the third day?
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
Establish variables
x = day 1
y = day 2
z = day 3
...
Given
x+y+z = 246
x=79
y = z+47
...
Substitute x and y into the first equation and solve for z
...
79 + z+47 + z = 246
Combine like terms
2z = 246 - 79 - 47
2z = 120
...
Divide both sides by 2
people
...
Check
.....................
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