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Phổ biến Word Problems >

the sum of 2 numbers is 56. one number is 3 times as large as the other. what are the numbers?

Lời Giải

t h e s u m o f 2 n u mb ers i s 56. o n e n u mb er i s 3 t im es a s l a r g e a s t h e o t h er . w ha t a re t h e n u mb ers ?

Lời Giải

The numbers : 42, 14

Các bước giải pháp

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x + y = 56

x = 3 y

x + y = 56, x = 3 y : x = 42, y = 14

The numbers : 42, 14

Ví dụ phổ biến

The product of two consecutive integers is 462 . What are the integers?make a number story for 3/4 × 5/8 twice a number increased by 7 ten less than the square of a number , a Vincent took out a 500 loan to buy a new couch. He paid back the loan in 2 years and paid an interest of 70. What was the simple interest rate for his loan?