JesslinX165029 JesslinX165029
  • 03-11-2022
  • Mathematics
contestada

use the substitution method to solve the system of equationsy=4x8x+y=18

Respuesta :

ShahanaW565598 ShahanaW565598
  • 03-11-2022

Given data:

The first equation is y=4x.

The second equation is 8x+y=18.

Substitute first equation into second equation.

[tex]\begin{gathered} 8x+4x=18 \\ 12x=18 \\ x=\frac{3}{2} \end{gathered}[/tex]

Substitute 3/2 for x in the first equation.

[tex]\begin{gathered} y=4(\frac{3}{2}) \\ =6 \end{gathered}[/tex]

Thus, the value of x is 3/2, and the value of y is 6.

Answer Link

Otras preguntas

What was Cuba’s relationship to the US in 1898-1903?
What was Confucian golden rule?
Please help easy math Oliver needed to build 10 chairs to go with a dining room table that he had built. At the start of the second day he had completed 4 chai
Stephany has a dog thtat weighs 5times as much as ians dog the total weight of both dogs are 72 pounds how much does stephens dog weigh
A solid block of mass 16 kg slides down a ramp from a height of 4.9 m on to a smooth horizontal floor where it encounters a frictional force of 38.2 N. Using th
Joylin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the numbe
Please solve y=x^2-6x-5 by factoring and by using the quadratic formula with work attached
What percent of 18 is 4.5?
Classify the reactions as endothermic or exothermic. A. The reaction between ammonium nitrate and water absorbs heat from the surrounding environment. B. Three
what's the volume of the cylinder