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Решение

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Father's age is 7 times as old as his son. Two years ago; father was 13 times as old as his son. What are their present ages ?A cyclist travels at an среднее speed of 15 km per hour for 3 hours. How far has the cyclist traveled?Ben is 39 and Kevin is 3. How many years until Ben is 4 times as old as KevinGeorge is twice as old as Tamara. In five years, George will be 1.5 times as old as Tamara. Write a system of линейный equationsTommy inherited some money from his grandfather and put it in a bank account that earns 8% interest compounded quarterly. After 7 years, Tommy had 700.00 in the bank account. How much interest did he earn?