At the shopping mall, Joaquin bought 4 pretzels and a bottle of water for $11.50. Kelly bought 3 pretzels and a bottle of water for $9.00. What is the price of a bottle of water?
2 Answers
Aug 4, 2016
Water:
Explanation:
Let
and
We are told
[1]
[2]
Subtracting [2] from [1] we get
[3]
Substituting
[4]
or
[5]
Aug 4, 2016
The price of a bottle of water is 5.50$
Explanation:
The price of one pretzel is x$.
The price of one water bottle is y$.
4x+y=11.50
3x+y=9.00
subtract the second equation from first
The price of a bottle of water is 5.50$