Lời Giải
Lời Giải
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Represent the number with
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the sum of two numbers is 23. twice the greater number added to three times the smaller number is 57Nicola is 6 years older than her brother, Carl. In 5 years, Nicola will be 2 times as old as Carl. How old is Carl now?a number subtracted from-53 amounts to 159Alex went for a drive in his new Toyota. She drove for 142.5 miles at a speed of 57 mph. For how many hours did he drive?Jessica is 31 years older than Todd. Haley is 27. Dan is 15 years younger than Haley and 3 years younger than Todd. How old is Jessica?