解答
解答
求解步骤
Given:
Square area given
流行的例子
Four times a number is 60 less than 6 times the number. Find the number.Eight times the number and 9 is 49. Find the number.A certain amount of money was invested for one year at a rate of 7.5%. At the end of that year it had earned \$675. How much money was invested?The radius of a circle is 9 ft. Find its 周长 in terms of pipiif s p of a radio is 585 and profit is 30% find the cost price of the radio