ru

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Популярное Word Problems >

If 3 times a certain number is increased by 4 the result is 28. What is the number?If x is the number, which of the following equations could be used to решить для the number?

Решение

I f 3 t im es a cer t ain n u mb er i s in cre a se d b y 4 t h e res u lt i s 28. Wha t i s t h e n u mb er ? I f x i s t h e n u mb er, w hi c h o f t h e f o ll o w in g e q u a t i o n s co u l d b e u se d t o so l v e f or t h e n u mb er ?

Решение

The number : 8

Шаги решения

Represent the number with

x

A.T.Q.:

3 x + 4 = 28

Решите для

x, 3 x + 4 = 28 : x = 8

The number : 8

Популярные примеры

8400 dollars is placed in an account with an annual interest rate of 6.75%. To the nearest year, how long will it take for the account value to reach 27200 dollars?A father is 10 times as old as his son. In 5 years the father will be 5 times as old as his son. How old is the father now and old is the son now?Kate has 70, 000 in a savings account that earns 8% interest per year.The interest is not compounded.How much interest will she earn in 1 years?3.Michael invests 440 for 8 years at a rate of 5.8%pa compounding annually. What is the total value of the investment?0.2 of what number is 8