tnt82799 tnt82799
  • 24-02-2018
  • Mathematics
contestada

please help with another math question

please help with another math question class=

Respuesta :

creeds25
creeds25 creeds25
  • 24-02-2018
Given system of equations:
2y=4x+20 Eq 1
4y=6x+24 Eq 2
Divide both sides of equation 1 by 2.
y=2x+10
Substitute value of y in equation 2.
4(2x+10)=6x+24
8x+40=6x+24
2x+40=24
2x=-16
x=-8
Put value of x in y=2x+10
y=2(-8) + 10
y=-16+10
y=-6

Answer : (-8,-6)
Answer Link

Otras preguntas

How would you describe the Great War? A. It was very long and many, many people died. B. It was very long, but not very many people died. C. It was a short w
I need help.........
Not only did war aid industry's growth, but industry also aided war. True False
Which equation can be used to find t, the amount of time Amir spent hiking during the second, more difficult part of the hike?
How US is the most developed country?
At a middle school, the long jump record is 4.5 meters. If 1 meter equals 3.3 feet, what is the schools long jump record in feet!
Can someone pls help me with proving that (f)x^2-2|x| is increasing over [1;infinity] and decreasing over [0;1] then deduce that (f) admits a minimum to be dete
Round 23.455 cm into 4 significant figures
HELP Use the simple interest formula, I = prt, to find the simple interest: Ken borrowed $6,000 for 4 years at a rate of 7% simple interest per year. How much i
Starting at home, Omar traveled uphill to the gift store for 30 minutes at just 10 mph. He then traveled back home along the same path downhill at a speed of 30