Решение

Решение

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Translate the problem into an equation
Solve the equation

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Alvin is 9 years older than Elga. The sum of their ages is 83 . What is Elga's age?:years oldKevin is 17 years younger than his sister, Ntuthuko. In 7 years, Ntuthuko will be 2 times as old as Kevin. How old is Kevin now?Harry puts 200.00 into an account to use for school expenses. The account earns 10% interest, compounded annually. How much will be in the account after 9 years?Erica opened a savings account and deposited 2,000.00. The account earns 12% interest, compounded annually. If she wants to use the money to buy a new bicycle in 2 years, how much will she be able to spend on the bike?The radius of a circle is 17 feet. What is the circle's окружность?