yannetserrano14 yannetserrano14

20-04-2018
Mathematics

contestada

if a certain number is added to both the numerator and denominator of the fraction 8/9, the result is 6/7. Find the numer.

Respuesta :

mkryukova19 mkryukova19

21-04-2018

[tex] \frac{8+x}{9+x} = \frac{6}{7} 7(8+x)=6(9+x) 56+7x = 54+6x 7x-6x=54-56 x=-2 [/tex]

Answer Link

Otras preguntas

What do religions believe happens after death?

if I get played 9$ an hour and I work 8:15 a day how much do I get for 5 days

Sam is 5 years old. His older brother, Tom, is three times as old as Sam. When Sam is 20, how old will Tom be?

Define the efficiency of an energy converter.

Simplify (3x - 5) + (3x + 6).

What Is The Slope Of A Line parallel to y = -2/5x + 4/5

Solve the following exponential equations 4^x=1024

if the letters of the word 'MOTHER'are written in all possible order and these words are written out as in dictionary ,find the rank of the word 'MOTHER'.

Log4 8= simplify using properties of logarithm

Can anyone help me solve this system of equation by elimination? 5x+4y=-30 3x-9y=-18