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 muscle moves urine through your urinary system?
Who wrote the book Utopia about an ideal society where there were no rich or poor?
Find the area of a circle whose circumference is 8
What is the name of the large sea off the the weastern coast of alaska?
how do breeders produce genetic variations that are not found in nature?
Josephus was a Jewish historian. True False
How many more cans were collected by MR Galvezs class than Ms lees class
Write a decimal for 10 times as much of 3.0
A right rectangular prism is packed with cubes of side length 1/2 inch. If the prism is packed with 5 cubes along the length, 3 cubes along the width, and 6 cub
A man climbs a wall that has a height of 8.4 meters and gave the potential energy of 4620 joules. His mass is about_____ kilograms?