mya0206
mya0206
22-01-2019
Mathematics
contestada
What is 2x+y=8 and x-2y=-1
Respuesta :
kayeecheng2102p3s8sa
kayeecheng2102p3s8sa
22-01-2019
the solutions of x and y?
2x+y=8...(1)
x-2y=-1...(2)
for (2), x=-1+2y...(3)
sub(3) into(1),
2(-1+2y) +y=8
-2+4y+y=8
5y=10
y=2
sub y=2 into(3)
x=-1+2(2) =3
therefore, x=3,y=2
Answer Link
VER TODAS LAS RESPUESTAS ( 58+ )
Otras preguntas
A. Wellness is a continuum, which means personal wellness can vary between very poor and very good B. each of the dimensions of health are interrelated C. peopl
PLSSSS ANYONE! Identify another use for gel electrophoresis other than in criminal investigations (forensics).identify evolutionary relationships, medical diagn
A square pyramid with sides of length 19 and height of 9 The volume is ?
mia bought 10 boxes of brownies at the store for a total of $64. The tax on the purchase was $5. What was the cost of each box?Which equation represents this sc
In what way does the Hindenburg disaster demonstrate the effects that different media can have on a single event?
Select ALL the correct answers. In which two ways does setting of the night sky develop the theme that one's surroundings can influence one's outlook? It create
Which of the following is true about mutation? a. Mutation comes from artificial selection. b. Mutation is always harmful to an organism’s survival. c. Mutation
Can somebody please help me!
SOMEONE help! due today 25 POINTS SEE ATTACHED.
what Major adaptations necessary for survival are in the temperate rain forest
