ria3545
ria3545
04-02-2021
Mathematics
contestada
solve the simultaneous equations
2x+3y=13
4x-y=-2
Respuesta :
assvecca
assvecca
04-02-2021
from eq1 ,
2x = 13-3y
x = 6.5-1.5y (eq 3)
sub eq 3 into eq2,
4(6.5-1.5y)-y=-2
26-6y-y=-2
-6y-y=-2-26
-7y=-28
7y=28
y=4 ( eq 4 )
sub eq4 into eq3 ,
x=6.5-1.5(4)
x=6.5-6
x=0.5
Answer Link
VER TODAS LAS RESPUESTAS ( 34+ )
Otras preguntas
In international morse code, each letter in the alphabet is symbolized by a series of dots and dashes: the letter a, for example, is encoded as "· –". what is t
Which of these best describes Earth’s crust? inner layer consisting two parts middle layer density decreases with depth top portion called atmosphere , thickes
When a neat, ordered chemical is changed into a more disordered chemical, there is an increase in what?
which one of the following choices is not a function of the GI tract
what is the momentum of a volleyball with a velocity of 50 mph and a mass of .5 kg?
Someone who is _____ is more likely to vote for a Democrat than for the Republican.
Calculate the percent composition of bromine in kBr
Which of the following would be a reasonable estimate for the weight of a pencil? A. 1 × 1020 lb B. 1 × 10-2 lb C. 1 × 10-20 lb D. 1 × 102 lb
A student is given two metal cubes that look similar. the first had an edge length of 1.05 cm and a mass of 14.32 g, while the other had an edge length of 2.66
Adrian jogs 3\4 mile each morning.How many days will it take him to jog 3 miles? Plz help
