解
解
解答ステップ
Translate the problem into an equation:
人気の例
Twelve years ago Eric’s father was seven times as old as Eric was. If Eric’s father is now 54 years old, how old is Eric now?If a fair coin is tossed 6 times, what is the probability, to the nearest thousandth, of getting exactly 3 tails?After a 30% discount, a pair of jeans costs 72. What was the original price?The product of two consecutive positive integers is 30. Find the value of the greater integer.The 円周 of a circle is 14pi in. What is the area, in square inches? Express your answer in terms of pipi.