tcuff2002 tcuff2002

26-01-2017
Mathematics

contestada

5x+y=27 y=4x using substitution method

Respuesta :

LukesTuke LukesTuke

26-01-2017

5x + y = 27
substitute: 5x + 4x = 27
combine: 9x = 27
divide (by 9): x = 3

Answer Link

Apocrophon Apocrophon

26-01-2017

Substitute 4x for y, and solve for x;
5x + (4x) = 27
9x = 27
x = 3
Substitute 3 in for x in the first equation and solve for y;
5(3) + y = 27
15 + y = 27
y = 12

Answer Link

Otras preguntas

what is the area of a square with sides 12 in. long? 1ft long?

What was a central goal of Henry Grady’s idea for a New South? paying better wages developing industry preventing cities from growing limiting the crops farmers

PLEASE HELP 15 points for brainliest!What is the solution of n^2-49=0 a.-7 b7 c.+/-7 d. no solution 2. What is the solution of x^2+64=0 a.-5 b.8 c.+/-8 d. no s

is 81x squared minus 1 a perfect square

Major industries in the early 1900s were food products, textiles, iron and steel, and lumber. true false (please help me

Mr. Geometry, Mr. Algebra and Ms. Calculus ordered similarly priced lunches and agreed to split the bill plus a 15% tip. How much should each person pay if the

What is the word for squezing a group of particles in a wave?

please help me on my math

How do you increase 360g by 12.5%

find the constant of proportionality and unit rate for the data in the table. Then write the equation to represent the relationship between time t and distance