alarconanais07
06.01.2020 •
Mathematics
You and your friends kyra and paola decide to make some money during summer vacation by building and selling bird houses. to get the business started kyra contributes $22 and paula contributes $18 to buy equipment and materials. you all agree that each person will learn the same amount of money after kyra and paolo get back what they invested. your business earns a total of $280. how much does each person get at the end of summer?
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Ответ:
Given:
Train travels
Distance - 90Km
Time - 3hrs
Distance - 120Km
Time - 2hrs
Average speed - ?
190 – 120
70Km - 1Hr
=70Km/hrs