解答
解答
+1
十进制
求解步骤
Given:
给定 的圆周长:
流行的例子
the 差集 of twice a number and 5 is greater than-2913 more than a number is 19.Kevin is 6 years older than Timothy, but 4 years ago Kevin was twice as old as Timothy. Find their present ages.solve and show solution : If a card is selected at random standard deck of card, what is the probability that the card drawn is red card or face cardTwice the 差集 between a number and 4 is equal to three times the sum of the number and two.