ANONYMUSNESS8106 ANONYMUSNESS8106
  • 15-02-2019
  • Mathematics
contestada

Gary is 8 years older than his brother. Six years ago Gary was three times as old as his brother. How old are they now?

Respuesta :

bunnymarshmarloykw47
bunnymarshmarloykw47 bunnymarshmarloykw47
  • 15-02-2019

We can set two equations to solve the question:

Let Gary's age be x and his brother's age be y.

As Gary is 8 years older:

x+8 = y

x = y-8...(1)

Six years ago Gary was three times as old as his brother:

x-6=3(y-6)...(2)

Put (1) into (2)

y-8-6 = 3y -36

-2y = -36+14

y = -22/-2

y=11

His brother is 11 years old, while the age of Gary:

11+8=19

Hope it helps!

Answer Link

Otras preguntas

What is the approximate volume of a cone with a height of 9 ft and radius of 3 ft? Use 3.14 to approximate pi, and express your final answer to the nearest tent
A shoreline is eroding at a rate of 1/3 foot per 3 months . How many feet are eroding per year?
how can you make gravity smaller and bigger
The slope of a line is represented by the variable _____. X y m b
contrast instinctive behavior with learned behavior
An entrepreneur takes a risk to create a new product or a better way to operate a 4. a. True b. False
Simplify six-hundred thirty over 10
why do some recipes have high altitude directions?
Which of the following describes gamma rays? short wavelength, high frequency short wavelength, low frequency long wavelength, high frequency long wavelength, l
What is a set of instructions that runs on a computer that enables it to execute specific tasks called? A. Code B. Database C. Software D. Query