解答
解答
求解步骤
Translate the problem into an equation:
流行的例子
the product of a number and four increased by one is at least 7Jane is x years old. Dan is twice as old as Jane. Pete is 4 years older than Dan. The sum of their ages is 89. How old are each of them?The price of a gift plus 15% delivery charge comes to a total cost of 17.25. What was the price of the gift?Find the compound amount for the deposit and the amount of interested earned.\15, 000 at %5 compounded monthly for 18 years. The amount of interest earned is\$Find the amount in a continuously compounded account for the following condition. Principal, 4000; Annual interest rate, 5.6%; time, 2 years