marianasophiawatkins marianasophiawatkins
  • 14-11-2020
  • Mathematics
contestada

The sum of three numbers is 56. The second number is 2 times the third. The first number is 8 less than the third. What are the numbers?

Respuesta :

tyeasee tyeasee
  • 14-11-2020

Answer:

X = 8

Y = 32

Z = 16

Step-by-step explanation:

X + Y + Z = 56

Y = 2Z

X = Z – 8

Substitute the values from the second and third equation into the first equation:

Z – 8 + 2Z + Z = 56

Simplify

-8 + 4Z = 56

4Z = 64

Z = 16

So if Y = 2Z, Y = 2(16) = 32

And if X = Z – 8, X = 16-8 = 8

Answer Link

Otras preguntas

Am executive department whose main function is to promote safety is
This expert from Achebe’s things is an example of Igbos frequent use of ______ In conversation.
Which of these monarchs had the shortest reign? 1714 – 1725: Reign of King George I 1727 – 1760: Reign of King George II 1760 – 1820: Reign of King George III
What is the justification for the step taken from line 2 to line 3? the subtraction property of equality the multiplication property of equality combining like
I don’t understand my homework. Here is a pic
Guavate is known for its traditional Puerto Rican food
PLEASE HELP WITH 6 AND/OR NUMBER 7 A.S.A.P. WILL MARK BRAINLIEST!!! NEED ASAPPPPPPPP
please help on this math question
Explain how you would graph the system of equations and why you would use that method. t = 5c + 35 t = 10c
calculate the volume of 12.0 g of helium at 100°c and 1.2 atm