vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

Ann is 4 years older than Julie. 4 years ago Ann was twice as old as Julie. What

Lời Giải

A nn i s 4 ye a rs o l d er t han J u l i e . 4 ye a rs a g o A nn w a s tw i ce a s o l d a s J u l i e . Wha t

Lời Giải

Ann^{'} s age is : 12

Julie^{'} s age is : 8

Các bước giải pháp

Translate the problem into an equation:

x - 4 = 2 (x - 4 - 4)

Giải

x, x - 4 = 2 (x - 4 - 4) : x = 12

Tìm age

Ann^{'} s age is : 12

Julie^{'} s age is : 8

Ví dụ phổ biến

7700 dollars is placed in an account with an annual interest rate of 8.25%. To the nearest tenth of a year, how long will it take for the account value to reach 44700 dollars?Amanda paid 24 for a shirt that was on sale at 25% of. What was the original price for the shirt?Twice Jack's age plus 5 is 21. Write and solve an equation. How old is Jack?The hiệu between two numbers is 31. The smaller number is 38 less than twice the larger number. Find the two numbers.The đường kính of a circle is 12 cm. Find its area in terms of pipi.