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شائع Word Problems >

If a number is added to the numerator of 3/7 and the same number is subtracted from the denominator, the result is 4. Find the number.

الحلّ

I f a n u mb er i s a dd e d t o t h e n u m er a t or o f \frac{3}{7} an d t h e s am e n u mb er i s s u b t r a c t e d f ro m t h e d e n o mina t or, t h e res u lt i s 4. F in d t h e n u mb er .

الحلّ

The number : 5

خطوات الحلّ

Represent the number with

x

A.T.Q.:

\frac{3 + x}{7 - x} = 4

\frac{3 + x}{7 - x} = 4, x

حلّ لـ:

x = 5

The number : 5

أمثلة شائعة

If 1200 is invested in an account that earns 9.01% compounded annually for 6 years, find the interest earned during each year and the amount in the account at the end of each year.The radius of a circle is 10 inches. What is the area?Twice the difference of a number and 4 equals 5.Each side of a square garden is 13 yards long. What is the garden's area?Reid earned some money doing odd jobs last summer and put it in a savings account that earns 12% interest compounded monthly. After 3 years, there is 200.00 in the account. How much did Reid earn doing odd jobs?