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פּוֹפּוּלָרִי Word Problems >

2 In 5 years time I will be 5 times as old as I was 11 years ago. Form a suitable equation, and hence determine my age. \(? \)

פתרון

2 I n 5 ye a rs t im e I w i ll b e 5 t im es a s o l d a s I w a s 11 ye a rs a g o . F or m a s u i t ab l e e q u a t i o n, an d h e n ce d e t er min e m y a g e . l e f t (? r i g h t)

פתרון

my age is : 21 \frac{2}{3}

צעדי פתרון

Translate the problem into an equation:

2 (x + 5) = 5 (x - 11)

2 (x + 5) = 5 (x - 11), x

פתור בשביל:

x = \frac{65}{3}

הסב שבר מדומה למספר מעורב:

21 \frac{2}{3}

my age is : 21 \frac{2}{3}

דוגמאות פופולריות

The sum of three consecutive natural numbers is 624, find the numbers.The larger of two numbers is two more than five times the smaller number. If the sum of the two numbers is 80 find both numbers The sum of two consecutive integers is −5. Find the numbers.Find how long it takes a 900 investment to earn 400 interest if it is invested at 4% interest compounded quarterly.The sum of twice a positive integer and four times the reciprocal of the integer is 9. Find the integer.