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4. Bill and Steve decide to spend the afternoon at an amusement park enjoying their favorite
activities, the water slide and the gigantic Ferris wheel. Bill rides the water slide three times and the
Ferris wheel three times and spends $17.70. Steve rides the water slide twice and the Ferris wheel
three times and spends $15.55. How much does it cost to ride each?

Answer :

Answer:

3x + 3y = 17.7

2x + 3y = 15.55

subtract them

x = 2.15

back in the first:

3(2.15) + 3y = 17.7

3y = 11.25

y = 3.75

slide ---> 2.15

wheel --> 3.75

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