Lời Giải
Lời Giải
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Represent the numbers with :
A.T.Q.:
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if 2 times a number is subtracted from the square of the same number, the result is at most 80. find the greatest possible numberThe sum of two numbers is 78. Five times the smaller number is 12 less than twice the larger number. What are the numbers?a man travels 180km from the farm to town. on the return journey he traveled 30km per hour faster. he saves one hour on the return journey. at what speed did he go to townZweli wants to buy an ordinary annuity that pays R6 000 a year for the next 20 years. The expect annual interest rates will be 6% over that time period. what is the cực đại he will pay for annuity?21 trucks and 35 cars equal how many tires