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 ( 14+ )
Otras preguntas
what are some physical changes that occur at school? at home ? in nature ?
A basketball rolls of a 0.70 m high desk and strikes the floor 0.25 m away from the base of the desk? How fast was the ball rolling?
a bicyclist rides 1/5 mile in 1/65 hour. Write this rate as a unit rate
why is water so important in metabolism
Find the value of 2 in this equation. 33- (8t) = 15
how many hundredths are in 0.5
Prove that 2n + 1 ≤ 2n for n ≥ 3
In class 6, 80percent of the children like crisps. 75percent of the children who like crisps also like chocolate. In class 6 what percentage of the children lik
Why do you think the governments of the United States and other countries encouraged people on the home front to organized programs for such activities as scrap
Why do you think the governments of the United States and other countries encouraged people on the home front to organized programs for such activities as scrap
