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Phổ biến Word Problems >

Marga is 5years older than Ella. Three years ago she was twice as old as Ella. How old is Ella now

Lời Giải

M a r g a i s 5 ye a rs o l d er t han Ell a . T h ree ye a rs a g o s h e w a s tw i ce a s o l d a s Ell a . Ho w o l d i s Ell a n o w

Lời Giải

Ella^{'} s age is : 8

Các bước giải pháp

Translate the problem into an equation:

x - 3 = 2 (x - 5 - 3)

Giải

x, x - 3 = 2 (x - 5 - 3) : x = 13

Tìm Ella's age

: 8

Ella^{'} s age is : 8

Ví dụ phổ biến

If the sum of four consecutive even integers is 204, what is the smallest of the four integers?one number is 5 more than a second number. The sum of the two numbers is 115. Find the numbers how many years will it take 9000 to grow to 17900 if invested at 9% compounded quarterly one fifth of the sum of two consecutive integers is 10 less than the smaller integer. Find the integers Tiana has 70 in an account. The interest rate is 5% compounded annually.To the nearest cent, how much will she have in 1 year?