it

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popolare Word Problems >

Father's age is 7 times as old as his son. Two years ago; father was 13 times as old as his son. What are their present ages ?

Soluzione

F a t h e r^{'} s a g e i s 7 t im es a s o l d a s hi s so n . Tw o ye a rs a g o; f a t h er w a s 13 t im es a s o l d a s hi s so n . Wha t a re t h e i r p rese n t a g es ?

Soluzione

Boy^{'} s age is : 4

Father^{'} s age is : 28

Fasi della soluzione

Translate the problem into an equation:

7 x - 2 = 13 (x - 2)

Risolvi per

x, 7 x - 2 = 13 (x - 2) : x = 4

Trova age

Boy^{'} s age is : 4

Father^{'} s age is : 28

Esempi popolari

A cyclist travels at an media speed of 15 km per hour for 3 hours. How far has the cyclist traveled?Ben is 39 and Kevin is 3. How many years until Ben is 4 times as old as Kevin George is twice as old as Tamara. In five years, George will be 1.5 times as old as Tamara. Write a system of lineare equations Tommy inherited some money from his grandfather and put it in a bank account that earns 8% interest compounded quarterly. After 7 years, Tommy had 700.00 in the bank account. How much interest did he earn?the product of two consecutive negative integers is 72. find the value of the lesser integer.