John wanted to go to Florida for Christmas. He needs $350 for his hotel stay and $55 for gas. He has $128 for the trip. How do you write an equation showing the amount of money John still needs in order to take his trip and solve?

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Answer 1 · 2018-06-04T04:56:36

#z= $277#

Let :

#a = $350 # ( Hotel stay )

#b = $ 55 # (Gas)

#x = # Total Expenses

#y = $ 128# ( Money he has )

#z = # Money he still needed

Form the equations

Total expenses is :

#x = a + b#

#x = 350 + 55 #

#x = 405#

Money needed

#z= x- y#

#z = 405 - 128 #

#z= $277#