ambmundle
ambmundle
01-03-2017
Mathematics
contestada
how to use substitution for 4x+3y=13 and x+y=4
Respuesta :
wolf1728
wolf1728
04-03-2017
A) 4x + 3y = 13
B) x + y = 4
B) x = 4 -y Then we substitute this into Equation A
A) 4 (4-y) + 3y = 13
A) 16 -4y +3y = 13
A) -y = -3
y = 3
x = 1
Answer Link
VER TODAS LAS RESPUESTAS ( 22+ )
Otras preguntas
Every 5 and 1/2 cups of flour weighs 1 9/16 pounds. Use a unit rate to show how you could determine if there are more than or less than 35 cups of flour in a 10
1)Which of the following describes a basic concept of democracy.? A) individual worth is valued more than the protection of all citizens. B) all men are of equa
What is the missing exponent? (12^-5)^2 / 12^-4 = 12^_____
A rectangular box has a square base. The combined length of a side of the square base, and the height is 20 in. Let x be the length of a side of the base of the
Which of the following is true about scientific theories? I. New research is often done to learn more about existing scientific theories. II. Scientific theorie
What did Stalin want for the future of Germany? (A) He wanted Germany to remain under the control of the Allies. (B) He wanted a stronger and united Germany. (C
What is the capital of the island nation off the coast of East Asia through which the Tropic of Cancer passes?
two objects were lifted by a machine. one object had a mass of 2 kilograms and was lifted at the speed of 2 m/s. the other had a mass of 4 kilograms and was lif
Two right triangles with the following dimensions are graphed with their hypotenuses on the same line: triangle X: horizontal leg measures 4 units vertical leg
In laboratory volume of liquid are usually measured with a (n)
