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 ( 75+ )
Otras preguntas
Matthew is preheating his oven before using it to bake. The initial temperature of the oven is 65° and the temperature will increase at a rate of 15° per minute
Kendra has $8.50 in dimes and quarters. If she has 3 times as many quarters as dimes, how many of each coin does she have?
find quadratic equation who's roots are 1/2 and -1/3
Are there any redeeming qualities to elitism and any downsides to pluralism? Are there benefits to having elites rule? Are there problems with allowing interest
Need to know asap. If m<8=23°, find the measure of each missing angle. Give your reasoning.
what is the solution to : 3(1/2 m - 3) =45
PLEASE HURRY WILL MARK BRAINLIST Which of the following statements best explains the large numbers of European language speakers in North Africa? A. European ar
Question 2 1 pts Which value below correctly expresses the answer to this calculation: (Reminder: consider sig figs) 310 x 0.00189 x 42.0 =
How might you develop your sense of timing?
I NEED THIS ASAP! Myra is reading an article about the success of introduced species of animals into the United States. Which person is most likely considered t
