zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的 Word Problems >

seven more than twice a number is equal to four times the same number

解答

se v e n m ore t han tw i ce a n u mb er i s e q u a l t o f o u r t im es t h e s am e n u mb er

解答

The number : 3 \frac{1}{2}

求解步骤

Represent the number with

x

A.T.Q.:

7 + 2 x = 4 x

求解

x, 7 + 2 x = 4 x : x = \frac{7}{2}

将假分式转换为带分数:

\frac{7}{2} = 3 \frac{1}{2}

The number : 3 \frac{1}{2}

流行的例子

Travis is 17 years older than his sister Kate. In 11 years, he will be twice as old as Kate. How old is each of them now?The area of a circle is 0.2826 square inches. What is the circle's 周长?Heather is six years younger than her husband Ryan. The sum of their ages is 52:How old is Ryan?Identify the percent, amount, and base in this problem. For the unknown value use x .What number is 42% of 200?What is the circle's radius if the 周长 of a circle is 100.48 ?