SOLUTION: A real estate salesperson bought promotional calendars and date books to give to her customers at the end of the year. The calendars cost $0.50 each and the date books cost $0.75 e

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Question 883646: A real estate salesperson bought promotional calendars and date books to give to her customers at the end of the year. The calendars cost $0.50 each and the date books cost $0.75 each. She ordered 400 promotional items and spent $225. How many of each item did she order?
Answer by lwsshak3(11628) About Me  (Show Source):
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A real estate salesperson bought promotional calendars and date books to give to her customers at the end of the year. The calendars cost $0.50 each and the date books cost $0.75 each. She ordered 400 promotional items and spent $225. How many of each item did she order?
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let x=number of calendars ordered
400-x=number of date books ordered
.50x+.75(400-x)=225
.50x+300-.75x=225
.25x=75
x=300
400-x=100
number of calendars ordered=300
number of date books ordered=100