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人気のある Word Problems >

Find three consecutive odd integers whose sum is 39.

解

F in d t h ree co n sec u t i v e o dd in t e g ers w h ose s u m i s 39.

解

The numbers : 11, 13, 15

解答ステップ

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 2

Consecutive number 2 : x + 4

A.T.Q.:

x + x + 2 + x + 4 = 39

解く

x + x + 2 + x + 4 = 39 : x = 11

x + 2 = 11 + 2 = 13

x + 4 = 11 + 4 = 15

The numbers : 11, 13, 15

人気の例

mother is twice as old as her daughter now,:but 10 years ago, she was 3 times as old as her:daughter. Find their ages at present.解く The sum of 3 times a number and 5 is equal to 9.Darrell opened a savings account and deposited 600.00 as principal. The account earns 13% interest, compounded annually. What is the balance after 7 years?Madelyn opened a savings account and deposited 2,000.00 as principal. The account earns 3% interest, compounded quarterly. What is the balance after 5 years?the sum of two consecutive odd integers is-120