Lời Giải
Lời Giải
Các bước giải pháp
Represent the numbers with :
A.T.Q.:
Giải
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the sum of the ages of a boy and a girl is 18 years. Four years ago the girl was four times the age of the boy. Find the present age of each child.Kira went for a drive in her new car. She drove for 1 miles at a speed of 10 mph. For how many hours did she drive?The hiệu of twice a number and 7 is 9.74 more than six times a number is 23 less than the product of the same number and 11the sum of twice a number and five is 11 determined the number