bspaghettiabc
bspaghettiabc
01-03-2018
Mathematics
contestada
Solve the system shown.
Respuesta :
carlosego
carlosego
11-03-2018
1. Rewrite the system:
x+12y=68 (i)
x=8y-12 (ii)
2. Let's substitute the equation (ii) into the equation (i):
x+12y=68
(8y-12)+12y=68
3. Then, you have:
8y-12+12y=68
4. When you clear "y", you have:
20y-12=68
20y=68+12
20y=80
y=80/20
y=4
5. You already have the value of "y". Now, you must substitute this value into the equation (ii):
x=8y-12
x=8(4)-12
x=32-12
x=20
6. Therefore, the result is:
x=20
y=4
Answer Link
VER TODAS LAS RESPUESTAS ( 69+ )
Otras preguntas
What is the quotient?
When elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it true or false
find the equations of the following lines b. Gradient -4 and passing through point (2, 1) c. Passing through the points (2, -1) and (4, 2) d. Passing through
Why did the US airlift supplies into west Germany for over a year
what is the IQR of 62, 65, 93, 51, 55, 76, 79, 85, 55, 72, 78, 83, 91, and 82
3 geometric solids that have circular cross sections
Which of the following describes a covalent bond? a)It is the exchange of electrons between atoms with an electronegativity difference above 1.7. b)It is the ex
A variation on the Trojan horse is a brand-new piece of encryption software that seems secure, but which actually contains a backdoor, something that allows its
For which type of long-distance call do you need to tell the operator the name of the person to whom you wish to speak? Select one: a. direct-dial call b. perso
Your teacher has asked you to perform an experiment to see if the shape of objects, alone, affects the motion of objects. Which of the following would be the be
