en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

Eight times a number plus five times another number is-13. The sum of the two numbers is 1. What are the numbers?

Solution

E i g h t t im es a n u mb er pl u s f i v e t im es an o t h er n u mb er i s - 13. T h e s u m o f t h e tw o n u mb ers i s 1. Wha t a re t h e n u mb ers ?

Solution

The numbers : - 6, 7

Solution steps

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

8 x + 5 y = - 13

x + y = 1

8 x + 5 y = - 13, x + y = 1 : x = - 6, y = 7

The numbers : - 6, 7

Popular Examples

when 19 is subtracted from a number, the result is 42 A person invests 1000 dollars in a bank. The bank pays 5.75% interest compounded monthly. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 2900 dollars?a number that when decreased by 30% is 24 Find the present value of 10,000 if the interest paid is at a rate of 8% compounded continuously for 3 years.You open a saving account by depositing 11,250 into an account earning 4.75%. If this account is compounded quarterly, how much would you have in the account after 35 years.