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受欢迎的 Word Problems >

In 20 years, Joe would be thrice his age 4 years ago. How old will he be in two years?

解答

I n 20 ye a rs, J oe w o u l d b e t h r i ce hi s a g e 4 ye a rs a g o . Ho w o l d w i ll h e b e in tw o ye a rs ?

解答

Jo e^{'} s age in 2 years : 18

求解步骤

Translate the problem into an equation:

x + 20 = 3 (x - 4)

求解

x, x + 20 = 3 (x - 4) : x = 16

找到 Joe's age in 2 years:

18

Jo e^{'} s age in 2 years : 18

流行的例子

The 直径 of a circle is 13 in. Find its area to the nearest whole number.Jayce deposited 1500 at 7% interest compounded annually for 3 years. How much will Jayce earn after 3 years?23 is 50% of what number If 14,000 is invested at 7% annual interest, which is compounded continuously, what is the account balance after 12 years, assuming no additional deposits or withdrawals are made?Find the 半径 of a circle with an area of 63.7 square kilometers.