gatsbysgirl324 gatsbysgirl324
  • 03-01-2018
  • Mathematics
contestada

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? 15

Respuesta :

mathildaramaqap1ywpc
mathildaramaqap1ywpc mathildaramaqap1ywpc
  • 03-01-2018

[tex]5 + 3x = 20 \\ 3x = 20 - 5 \\ x = 15 \div 3 \\ x = 5[/tex]
Answer Link

Otras preguntas

What is Sir Francis Drake hardships
Why is RNA necessary to act as messenger?
A 1 digit number and a 3 digit number have a sum of 205.  The same two number have a difference of 195, a product of 1,000 and a quotient of 40.  What are the t
When was William Shakespeare born
How is the numeral 35.012 written in words and why
You have a cylinder with a diameter of 15 inches and a height of 12 inches. What is the volume of the largest sphere thg will fit inside it? If you can will you
What two major processes are involved in the oxygen cycle?
Rewrite the function c(x) =9(x+3) using the distributive property
Rewrite the function c(x) =9(x+3) using the distributive property
How many minutes are in 36 hours?