解
解
解答ステップ
Translate the problem into an equation:
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A die is rolled twice. Find the probability of getting the same number on both rollsThe number is twice the number fifteen plus twice the number 12Jared puts 3,000 into a bank account earning 3.4% interest. Years later, when he takes the money out of the account, he has 4,073.95. About how long did he leave the money in his bank account?Huilan's age is two times Thomas's age. The sum of their ages is 39 . What is Thomas's age?the 差 of two and a number is at least negative one