ko

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

인기 있는 Word Problems >

Alfred is four times as old as his brother. Four years from now, he will be twice as old as his:brother. Find their present ages.

해법

A l f re d i s f o u r t im es a s o l d a s hi s b ro t h er . F o u r ye a rs f ro m n o w, h e w i ll b e tw i ce a s o l d a s hi s : b ro t h er . F in d t h e i r p rese n t a g es .

해법

Brother^{'} s age is : 2

Alfred^{'} s age is : 8

솔루션 단계

Translate the problem into an equation:

4 x + 4 = 2 (x + 4)

x

해결 대상

, 4 x + 4 = 2 (x + 4) : x = 2

age 찾다

Brother^{'} s age is : 2

Alfred^{'} s age is : 8

인기 있는 예

Including a 6% sales tax, an inn charges \$156.88 per night. Find the inn's nightly cost before tax is added a pair of dice are rolled. given that both dice rolls are less than 5, find the probability that the sum of the rolls is six the number of bacteria increased 240%. It was 40,000 what is the number of bacteria now.The 원둘레 of a circle is 16pi cm. What is the area, in square centimeters? Express your answer in terms of pipi.Twelve less than the quotient of a number and 7 is-2