pt

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

Two times a number plus three times another number equals 13. The sum of the two numbers is 7. What are the numbers?

Solução

Tw o t im es a n u mb er pl u s t h ree t im es an o t h er n u mb er e q u a l s 13. T h e s u m o f t h e tw o n u mb ers i s 7. Wha t a re t h e n u mb ers ?

Solução

The numbers : 8, - 1

Passos da solução

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

2 x + 3 y = 13

x + y = 7

2 x + 3 y = 13, x + y = 7 : x = 8, y = - 1

The numbers : 8, - 1

Exemplos populares

A triangle has a base of 16 meters and a height of 17.6 meters. What is the área?Khalil and Alana deposit 500.00 into a savings account which earns 9% interest compounded annually. They want to use the money in the account to go on a trip in 3 years. How much will they be able to spend?Ed is 7 years older than Ted. Ed’s age is also 3/2 times Ted’s age. How old are Ed and Ted?Twice the difference of a number and 8 is at most-20 Zeke is saving up money to buy a car. Zeke puts 7,000.00 into an account which earns 9% interest, compounded quarterly. How much will he have in the account after 4 years?