解答
解答
求解步骤
Translate the problem into an equation:
求解
流行的例子
Two trains leave stations 375 miles apart at the same time and travel toward each other. One train travels at 90 miles per hour while the other travels at 80 miles per hour. How long will it take for the two trains to meet?the sum of 2 times a number and 9 is 4the sum of 3 consecutive odd numbers is 177 find numbers67 times a number minus 57 is equal to-73 less than the numberThe 直径 of a circle is 5 in. Find its area to the nearest hundredth.