Lời Giải
the difference of two numbers is 18 and their sum is 90 find the two numbers
Lời Giải
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Represent the numbers with :
A.T.Q.:
Ví dụ phổ biến
three times the sum of a number and 5 is equal to 68 more than a number x is 13Father'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 trung bình 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 Kevin