de

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Beliebt Word Problems >

Noy is twice as old as Kris. In eight years, Noy will be four years older than Kris. Find their present ages.

Lösung

N oy i s tw i ce a s o l d a s Kr i s . I n e i g h t ye a rs, N oy w i ll b e f o u r ye a rs o l d er t han Kr i s . F in d t h e i r p rese n t a g es .

Lösung

Kris^{'} s age is : 4

Noy^{'} s age is : 8

Schritte zur Lösung

Translate the problem into an equation:

2 x + 8 - 4 = x + 8

Löse nach

x, 2 x + 8 - 4 = x + 8 : x = 4

Finde age

Kris^{'} s age is : 4

Noy^{'} s age is : 8

Beliebte Beispiele

the square of a negative number is 24 more than 5 times the number William is going to invest in an account paying an interest rate of 5.5% compounded monthly. How much would William need to invest, to the nearest hundred dollars, for the value of the account to reach 980 in 7 years?the sum of a number and its square is 20 The owner of a nursery buys potted plants for 3 each. The owner then resells the potted plants for 300% of the amount he paid for them.What is the price of a potted plant at the nursery?I deposit 50,000 into a CD that earns 5% interest compounded monthly. How much interest will I earn in 5 years?