Lời Giải
Lời Giải
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a number increased by 7 is less than or equal to 1Ryan Real Estate is a national real estate company that sells houses across the country. This year, Ryan Real Estate sold 57,868 homes. This turns out to be 48% more than they sold last year. How many homes did they sell last year?Translate to an equation and solve. Let x be the unknown number. What number is 66% of 39Alvin 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?