Lời Giải
Lời Giải
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Represent the numbers with :
A.T.Q.:
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4 less than 5 times a number is 1220 is 80% of what number?Ten years ago, Sarah was thrice as old as Mark. If Sarah is currently 40 years old, how old is MArk?michael is 10 times as old as carol. if the sum of carol and her father, michael is 100. what is their present agesThe product of two consecutive positive integers is 42. Write and solve a quadratic equation to find the solutions. Then show how you use those solutions to find the two consecutive positive integers.