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Phổ biến Word Problems >

A number is thrice another number. Their sum is 4040. What are the numbers?

Lời Giải

A n u mb er i s t h r i ce an o t h er n u mb er . T h e i r s u m i s 4040. Wha t a re t h e n u mb ers ?

Lời Giải

The numbers : 3030, 1010

Các bước giải pháp

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x = 3 y

x + y = 4040

x = 3 y, x + y = 4040 : x = 3030, y = 1010

The numbers : 3030, 1010

Ví dụ phổ biến

kate is 3 times as old as hr son. If kate is 30 years older than her son what are their ages the sum of a number and 4 times its reciprocal is 13/3 . find the number.The Garcias are saving up to go on a family vacation in 5 years. They invest 3200 into an account with an annual interest rate of 1.46% compounded quarterly.How much interest is earned on the Garcias' investment after 5 years?Isaiah puts 7,724.00 into an account to use for school expenses. The account earns 9% interest, compounded quarterly. How much will be in the account after 7 years?The product of a number and 7 is 70.