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 ( 61+ )
Otras preguntas
Suppose the price of pepper increases by 20percent and, as aresult, the quantity of salt demanded (holding the price of salt constant) decreases by 2 percent
What is sym metry? To explain
the gas constant is dependent on the units of...
The growth rate of a population is the amount by which a population's size changes in a given time. In which of the following ways are immigration and birth rat
Which of the following ratios are key components in measuring a company's operating efficiency? (You may select more than one answer.) a. Profit margin b. Equ
Can someone please help me with this!
On January 1, Year 1, a company with a calendar year end began developing a software program that it intends to market and sell to its customers. The software c
A basketball with a mass of 0.61 kg falls vertically to the floor where it hits with a velocity of −7 m/s. (We take the positive direction to be upward here.) T
What is the inverse of y=(x-6)^2 +2 ?
Before finding Shmuel in his house, Bruno had never noticed how thin Shmuel's fingers were, like "dying twigs." Why do Shmuel's and Bruno's hands look so differ
