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Word Problem



Alexis has a steady babysitting job over the summer. She starts out with $50 by the end of the first week and earns $30 each week. She thinks it will take her 7 weeks to have enough money to buy a $200 iPhone. Is she correct? Justify your answer using complete sentences and proper grammar.

Respuesta :

texaschic101
y = 30x + 50
200 = 30x + 50
200 - 50 = 30x
150 = 30x
150/30 = x
5 = x

Alexis is not correct. If she starts with $50, and earns $30 per week, it will take her only 5 weeks to come up with the $200 to buy the iphone. If she waited 7 weeks, she would have $260 instead of $200.

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